Vulnerabilities > CVE-2015-7510 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Systemd Project Systemd 223

047910
CVSS 9.8 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
systemd-project
CWE-119
critical
nessus

Summary

Stack-based buffer overflow in the getpwnam and getgrnam functions of the NSS module nss-mymachines in systemd.

Vulnerable Configurations

Part Description Count
Application
Systemd_Project
1

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.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

  • NASL familyPhotonOS Local Security Checks
    NASL idPHOTONOS_PHSA-2017-0041_CURL.NASL
    descriptionAn update of the curl package has been released.
    last seen2020-03-17
    modified2019-02-07
    plugin id121748
    published2019-02-07
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/121748
    titlePhoton OS 1.0: Curl PHSA-2017-0041
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    
    # The descriptive text and package checks in this plugin were
    # extracted from VMware Security Advisory PHSA-2017-0041. The text
    # itself is copyright (C) VMware, Inc.
    
    
    include('compat.inc');
    
    if (description)
    {
      script_id(121748);
      script_version("1.2");
      script_set_attribute(attribute:"plugin_modification_date", value:"2019/02/07");
    
      script_cve_id("CVE-2017-1000100");
    
      script_name(english:"Photon OS 1.0: Curl PHSA-2017-0041");
      script_summary(english:"Checks the rpm output for the updated packages.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote PhotonOS host is missing multiple security updates.");
      script_set_attribute(attribute:"description", value:
    "An update of the curl package has been released.");
      script_set_attribute(attribute:"see_also", value:"https://github.com/vmware/photon/wiki/Security-Updates-82.md");
      script_set_attribute(attribute:"solution", value:
    "Update the affected Linux packages.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
      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:N/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-7510");
    
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2017/11/07");
      script_set_attribute(attribute:"patch_publication_date", value:"2017/11/07");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/07");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:vmware:photonos:curl");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:photonos:1.0");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"PhotonOS Local Security Checks");
    
      script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/PhotonOS/release", "Host/PhotonOS/rpm-list");
    
      exit(0);
    }
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    
    release = get_kb_item("Host/PhotonOS/release");
    if (isnull(release) || release !~ "^VMware Photon") audit(AUDIT_OS_NOT, "PhotonOS");
    if (release !~ "^VMware Photon (?:Linux|OS) 1\.0(\D|$)") audit(AUDIT_OS_NOT, "PhotonOS 1.0");
    
    if (!get_kb_item("Host/PhotonOS/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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "PhotonOS", cpu);
    
    flag = 0;
    
    if (rpm_check(release:"PhotonOS-1.0", reference:"curl-7.54.0-3.ph1")) flag++;
    if (rpm_check(release:"PhotonOS-1.0", reference:"curl-debuginfo-7.54.0-3.ph1")) flag++;
    
    if (flag)
    {
      security_report_v4(
        port       : 0,
        severity   : SECURITY_HOLE,
        extra      : rpm_report_get()
      );
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "curl");
    }
    
  • NASL familyPhotonOS Local Security Checks
    NASL idPHOTONOS_PHSA-2017-0041_FREETYPE2.NASL
    descriptionAn update of the freetype2 package has been released.
    last seen2020-03-17
    modified2019-02-07
    plugin id121749
    published2019-02-07
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/121749
    titlePhoton OS 1.0: Freetype2 PHSA-2017-0041
  • NASL familyPhotonOS Local Security Checks
    NASL idPHOTONOS_PHSA-2017-0041_GLIBC.NASL
    descriptionAn update of the glibc package has been released.
    last seen2020-03-17
    modified2019-02-07
    plugin id121750
    published2019-02-07
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/121750
    titlePhoton OS 1.0: Glibc PHSA-2017-0041
  • NASL familyPhotonOS Local Security Checks
    NASL idPHOTONOS_PHSA-2017-0041.NASL
    descriptionAn update of [systemd,curl,glibc,freetype2] packages for PhotonOS has been released.
    last seen2019-02-21
    modified2019-02-07
    plugin id111890
    published2018-08-17
    reporterTenable
    sourcehttps://www.tenable.com/plugins/index.php?view=single&id=111890
    titlePhoton OS 1.0: Curl / Freetype2 / Glibc / Systemd PHSA-2017-0041 (deprecated)
  • NASL familyPhotonOS Local Security Checks
    NASL idPHOTONOS_PHSA-2017-0041_SYSTEMD.NASL
    descriptionAn update of the systemd package has been released.
    last seen2020-03-17
    modified2019-02-07
    plugin id121751
    published2019-02-07
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/121751
    titlePhoton OS 1.0: Systemd PHSA-2017-0041