Vulnerabilities > CVE-2019-11255 - Improper Input Validation vulnerability in multiple products

047910
CVSS 6.5 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
HIGH
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
NONE
network
low complexity
kubernetes
redhat
CWE-20
nessus
NVD
Published: 2019-12-05
Updated: 2023-11-07

Summary

Improper input validation in Kubernetes CSI sidecar containers for external-provisioner (<v0.4.3, <v1.0.2, v1.1, <v1.2.2, <v1.3.1), external-snapshotter (<v0.4.2, <v1.0.2, v1.1, <1.2.2), and external-resizer (v0.1, v0.2) could result in unauthorized PersistentVolume data access or volume mutation during snapshot, restore from snapshot, cloning and resizing operations.

Vulnerable Configurations

Part Description Count
Application
Kubernetes
28
Application
Redhat
3

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

Nessus

  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2019-4096.NASL
    descriptionAn update for openshift-external-storage is now available for Red Hat OpenShift Container Platform 4.2. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Red Hat OpenShift Container Platform is Red Hat
    last seen2020-06-01
    modified2020-06-02
    plugin id131975
    published2019-12-12
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/131975
    titleRHEL 7 : OpenShift Container Platform 4.2 openshift-external-storage (RHSA-2019:4096)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2019:4096. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(131975);
  script_version("1.4");
  script_cvs_date("Date: 2019/12/23");

  script_cve_id("CVE-2019-11255");
  script_xref(name:"RHSA", value:"2019:4096");

  script_name(english:"RHEL 7 : OpenShift Container Platform 4.2 openshift-external-storage (RHSA-2019:4096)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for openshift-external-storage is now available for Red Hat
OpenShift Container Platform 4.2.

Red Hat Product Security has rated this update as having a security
impact of Moderate. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or
private cloud deployments.

Security Fix(es) :

* kubernetes-csi: CSI volume snapshot, cloning and resizing features
can result in unauthorized volume data access or mutation
(CVE-2019-11255)

For more details about the security issue(s), including the impact, a
CVSS score, acknowledgments, and other related information, refer to
the CVE page(s) listed in the References section."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2019:4096"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-11255"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-11255");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-cephfs-provisioner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-efs-provisioner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-local-provisioner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-manila-provisioner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-snapshot-controller");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-snapshot-provisioner");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/12/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/12/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 7.x", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2019:4096";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"openshift-external-storage-cephfs-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-cephfs-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"openshift-external-storage-debuginfo-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-debuginfo-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"openshift-external-storage-efs-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-efs-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"openshift-external-storage-local-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-local-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"openshift-external-storage-manila-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-manila-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"openshift-external-storage-snapshot-controller-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-snapshot-controller-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"openshift-external-storage-snapshot-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-snapshot-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "openshift-external-storage-cephfs-provisioner / etc");
  }
}
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2019-4225.NASL
    descriptionAn update for openshift-external-storage is now available for Red Hat OpenShift Container Platform 4.1. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Red Hat OpenShift Container Platform is Red Hat
    last seen2020-06-01
    modified2020-06-02
    plugin id132227
    published2019-12-18
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/132227
    titleRHEL 7 : OpenShift Container Platform 4.1 openshift-external-storage (RHSA-2019:4225)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2019:4225. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(132227);
  script_version("1.3");
  script_cvs_date("Date: 2019/12/23");

  script_cve_id("CVE-2019-11255");
  script_xref(name:"RHSA", value:"2019:4225");

  script_name(english:"RHEL 7 : OpenShift Container Platform 4.1 openshift-external-storage (RHSA-2019:4225)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for openshift-external-storage is now available for Red Hat
OpenShift Container Platform 4.1.

Red Hat Product Security has rated this update as having a security
impact of Moderate. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or
private cloud deployments.

Security Fix(es) :

* kubernetes-csi: CSI volume snapshot, cloning, and resizing features
can result in unauthorized volume data access or mutation
(CVE-2019-11255)

For more details about the security issue(s), including the impact, a
CVSS score, acknowledgments, and other related information, refer to
the CVE page(s) listed in the References section."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2019:4225"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-11255"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-11255");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-cephfs-provisioner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-efs-provisioner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-local-provisioner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-manila-provisioner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-snapshot-controller");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-snapshot-provisioner");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/12/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/12/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/18");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 7.x", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2019:4225";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-cephfs-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-debuginfo-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-efs-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-local-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-manila-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-snapshot-controller-0.0.2-11.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-snapshot-provisioner-0.0.2-11.gitd3c94f0.el7")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "openshift-external-storage-cephfs-provisioner / etc");
  }
}
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2019-4054.NASL
    descriptionAn update for openshift-external-storage is now available for Red Hat OpenShift Container Platform 3.11. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Red Hat OpenShift Container Platform is Red Hat
    last seen2020-06-01
    modified2020-06-02
    plugin id132223
    published2019-12-18
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/132223
    titleRHEL 7 : OpenShift Container Platform 3.11 openshift-external-storage (RHSA-2019:4054)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2019:4054. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(132223);
  script_version("1.3");
  script_cvs_date("Date: 2019/12/23");

  script_cve_id("CVE-2019-11255");
  script_xref(name:"RHSA", value:"2019:4054");

  script_name(english:"RHEL 7 : OpenShift Container Platform 3.11 openshift-external-storage (RHSA-2019:4054)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for openshift-external-storage is now available for Red Hat
OpenShift Container Platform 3.11.

Red Hat Product Security has rated this update as having a security
impact of Moderate. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or
private cloud deployments.

Security Fix(es) :

* kubernetes-csi: CSI volume snapshot, cloning and resizing features
can result in unauthorized volume data access or mutation
(CVE-2019-11255)

For more details about the security issue(s), including the impact, a
CVSS score, acknowledgments, and other related information, refer to
the CVE page(s) listed in the References section."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2019:4054"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-11255"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-11255");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-cephfs-provisioner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-efs-provisioner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-local-provisioner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-manila-provisioner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-snapshot-controller");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-external-storage-snapshot-provisioner");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/12/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/12/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/18");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 7.x", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2019:4054";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-cephfs-provisioner-0.0.2-10.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-debuginfo-0.0.2-10.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-efs-provisioner-0.0.2-10.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-local-provisioner-0.0.2-10.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-manila-provisioner-0.0.2-10.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-snapshot-controller-0.0.2-10.gitd3c94f0.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-external-storage-snapshot-provisioner-0.0.2-10.gitd3c94f0.el7")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "openshift-external-storage-cephfs-provisioner / etc");
  }
}

Redhat

advisories
  • rhsa
    idRHSA-2019:4054
  • rhsa
    idRHSA-2019:4096
  • rhsa
    idRHSA-2019:4099
  • rhsa
    idRHSA-2019:4225
rpms
  • openshift-external-storage-cephfs-provisioner-0:0.0.2-10.gitd3c94f0.el7
  • openshift-external-storage-debuginfo-0:0.0.2-10.gitd3c94f0.el7
  • openshift-external-storage-efs-provisioner-0:0.0.2-10.gitd3c94f0.el7
  • openshift-external-storage-local-provisioner-0:0.0.2-10.gitd3c94f0.el7
  • openshift-external-storage-manila-provisioner-0:0.0.2-10.gitd3c94f0.el7
  • openshift-external-storage-snapshot-controller-0:0.0.2-10.gitd3c94f0.el7
  • openshift-external-storage-snapshot-provisioner-0:0.0.2-10.gitd3c94f0.el7
  • openshift-external-storage-cephfs-provisioner-0:0.0.2-11.gitd3c94f0.el7
  • openshift-external-storage-debuginfo-0:0.0.2-11.gitd3c94f0.el7
  • openshift-external-storage-efs-provisioner-0:0.0.2-11.gitd3c94f0.el7
  • openshift-external-storage-local-provisioner-0:0.0.2-11.gitd3c94f0.el7
  • openshift-external-storage-manila-provisioner-0:0.0.2-11.gitd3c94f0.el7
  • openshift-external-storage-snapshot-controller-0:0.0.2-11.gitd3c94f0.el7
  • openshift-external-storage-snapshot-provisioner-0:0.0.2-11.gitd3c94f0.el7
  • openshift-external-storage-cephfs-provisioner-0:0.0.2-11.gitd3c94f0.el7
  • openshift-external-storage-debuginfo-0:0.0.2-11.gitd3c94f0.el7
  • openshift-external-storage-efs-provisioner-0:0.0.2-11.gitd3c94f0.el7
  • openshift-external-storage-local-provisioner-0:0.0.2-11.gitd3c94f0.el7
  • openshift-external-storage-manila-provisioner-0:0.0.2-11.gitd3c94f0.el7
  • openshift-external-storage-snapshot-controller-0:0.0.2-11.gitd3c94f0.el7
  • openshift-external-storage-snapshot-provisioner-0:0.0.2-11.gitd3c94f0.el7

References