Vulnerabilities > CVE-2013-0308 - Improper Input Validation vulnerability in Git-Scm GIT

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
PARTIAL
Availability impact
NONE
network
git-scm
CWE-20
nessus

Summary

The imap-send command in GIT before 1.8.1.4 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

Vulnerable Configurations

Part Description Count
Application
Git-Scm
465

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 familyFedora Local Security Checks
    NASL idFEDORA_2013-2763.NASL
    descriptionThis update fixes CVE-2013-0308 (Incorrect IMAP server
    last seen2020-03-17
    modified2013-03-04
    plugin id64976
    published2013-03-04
    reporterThis script is Copyright (C) 2013-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/64976
    titleFedora 17 : git-1.7.11.7-3.fc17 (2013-2763)
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Fedora Security Advisory 2013-2763.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(64976);
      script_version("1.8");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");
    
      script_cve_id("CVE-2013-0308");
      script_bugtraq_id(58148);
      script_xref(name:"FEDORA", value:"2013-2763");
    
      script_name(english:"Fedora 17 : git-1.7.11.7-3.fc17 (2013-2763)");
      script_summary(english:"Checks rpm output for the updated package.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Fedora host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "This update fixes CVE-2013-0308 (Incorrect IMAP server's SSL x509.v3
    certificate validation in git-imap-send command).
    
    Note that Tenable Network Security has extracted the preceding
    description block directly from the Fedora security advisory. Tenable
    has attempted to automatically clean and format it as much as possible
    without introducing additional issues."
      );
      # https://lists.fedoraproject.org/pipermail/package-announce/2013-March/099488.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?5b0e078e"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected git package.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
      script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:git");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:17");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2013/02/21");
      script_set_attribute(attribute:"plugin_publication_date", value:"2013/03/04");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2013-2020 Tenable Network Security, Inc.");
      script_family(english:"Fedora Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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/RedHat/release");
    if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
    os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
    os_ver = os_ver[1];
    if (! ereg(pattern:"^17([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 17.x", "Fedora " + 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);
    
    flag = 0;
    if (rpm_check(release:"FC17", reference:"git-1.7.11.7-3.fc17")) flag++;
    
    
    if (flag)
    {
      if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
      else security_warning(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "git");
    }
    
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2013-0589.NASL
    descriptionUpdated git packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. Git is a fast, scalable, distributed revision control system. It was discovered that Git
    last seen2020-06-01
    modified2020-06-02
    plugin id65006
    published2013-03-05
    reporterThis script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/65006
    titleRHEL 6 : git (RHSA-2013:0589)
  • NASL familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2013-0589.NASL
    descriptionFrom Red Hat Security Advisory 2013:0589 : Updated git packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. Git is a fast, scalable, distributed revision control system. It was discovered that Git
    last seen2020-06-01
    modified2020-06-02
    plugin id68770
    published2013-07-12
    reporterThis script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/68770
    titleOracle Linux 6 : git (ELSA-2013-0589)
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2013-170.NASL
    descriptiongit imap-send was fixed to do SSL host verification. This can be disabled if necessary in the config file.
    last seen2020-06-05
    modified2014-06-13
    plugin id74912
    published2014-06-13
    reporterThis script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/74912
    titleopenSUSE Security Update : git (openSUSE-SU-2013:0380-1)
  • NASL familyMacOS X Local Security Checks
    NASL idMACOSX_XCODE_5_0.NASL
    descriptionThe remote Mac OS X host has Apple Xcode prior to 5.0 installed. It, therefore, includes a version of git in which the imap-send command reportedly does not verify that a server hostname matches the domain name in its X.509 certificate. A man-in-the-middle attacker could leverage this vulnerability to spoof SSL servers via an arbitrary valid certificate.
    last seen2020-05-06
    modified2013-09-24
    plugin id70093
    published2013-09-24
    reporterThis script is Copyright (C) 2013-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/70093
    titleApple Xcode < 5.0 (Mac OS X)
  • NASL familyCentOS Local Security Checks
    NASL idCENTOS_RHSA-2013-0589.NASL
    descriptionUpdated git packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. Git is a fast, scalable, distributed revision control system. It was discovered that Git
    last seen2020-06-01
    modified2020-06-02
    plugin id65160
    published2013-03-10
    reporterThis script is Copyright (C) 2013-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/65160
    titleCentOS 6 : git (CESA-2013:0589)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2013-2829.NASL
    descriptionThis update fixes CVE-2013-0308 (Incorrect IMAP server
    last seen2020-03-17
    modified2013-03-04
    plugin id64981
    published2013-03-04
    reporterThis script is Copyright (C) 2013-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/64981
    titleFedora 18 : git-1.8.1.4-1.fc18 (2013-2829)
  • NASL familyScientific Linux Local Security Checks
    NASL idSL_20130304_GIT_ON_SL6_X.NASL
    descriptionIt was discovered that Git
    last seen2020-05-15
    modified2013-03-05
    plugin id65018
    published2013-03-05
    reporterThis script is Copyright (C) 2013-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/65018
    titleScientific Linux Security Update : git on SL6.x i386/x86_64 (20130304)

Redhat

advisories
bugzilla
id909977
titleCVE-2013-0308 git: Incorrect IMAP server's SSL x509.v3 certificate validation in git-imap-send command
oval
OR
  • commentRed Hat Enterprise Linux must be installed
    ovaloval:com.redhat.rhba:tst:20070304026
  • AND
    • commentRed Hat Enterprise Linux 6 is installed
      ovaloval:com.redhat.rhba:tst:20111656003
    • OR
      • AND
        • commentperl-Git is earlier than 0:1.7.1-3.el6_4.1
          ovaloval:com.redhat.rhsa:tst:20130589001
        • commentperl-Git is signed with Red Hat redhatrelease2 key
          ovaloval:com.redhat.rhsa:tst:20101003012
      • AND
        • commentgit is earlier than 0:1.7.1-3.el6_4.1
          ovaloval:com.redhat.rhsa:tst:20130589003
        • commentgit is signed with Red Hat redhatrelease2 key
          ovaloval:com.redhat.rhsa:tst:20101003002
      • AND
        • commentgit-daemon is earlier than 0:1.7.1-3.el6_4.1
          ovaloval:com.redhat.rhsa:tst:20130589005
        • commentgit-daemon is signed with Red Hat redhatrelease2 key
          ovaloval:com.redhat.rhsa:tst:20101003004
      • AND
        • commentgit-cvs is earlier than 0:1.7.1-3.el6_4.1
          ovaloval:com.redhat.rhsa:tst:20130589007
        • commentgit-cvs is signed with Red Hat redhatrelease2 key
          ovaloval:com.redhat.rhsa:tst:20101003016
      • AND
        • commentgitweb is earlier than 0:1.7.1-3.el6_4.1
          ovaloval:com.redhat.rhsa:tst:20130589009
        • commentgitweb is signed with Red Hat redhatrelease2 key
          ovaloval:com.redhat.rhsa:tst:20101003014
      • AND
        • commentgit-svn is earlier than 0:1.7.1-3.el6_4.1
          ovaloval:com.redhat.rhsa:tst:20130589011
        • commentgit-svn is signed with Red Hat redhatrelease2 key
          ovaloval:com.redhat.rhsa:tst:20101003018
      • AND
        • commentgit-email is earlier than 0:1.7.1-3.el6_4.1
          ovaloval:com.redhat.rhsa:tst:20130589013
        • commentgit-email is signed with Red Hat redhatrelease2 key
          ovaloval:com.redhat.rhsa:tst:20101003024
      • AND
        • commentemacs-git is earlier than 0:1.7.1-3.el6_4.1
          ovaloval:com.redhat.rhsa:tst:20130589015
        • commentemacs-git is signed with Red Hat redhatrelease2 key
          ovaloval:com.redhat.rhsa:tst:20101003022
      • AND
        • commentgit-gui is earlier than 0:1.7.1-3.el6_4.1
          ovaloval:com.redhat.rhsa:tst:20130589017
        • commentgit-gui is signed with Red Hat redhatrelease2 key
          ovaloval:com.redhat.rhsa:tst:20101003006
      • AND
        • commentgitk is earlier than 0:1.7.1-3.el6_4.1
          ovaloval:com.redhat.rhsa:tst:20130589019
        • commentgitk is signed with Red Hat redhatrelease2 key
          ovaloval:com.redhat.rhsa:tst:20101003020
      • AND
        • commentemacs-git-el is earlier than 0:1.7.1-3.el6_4.1
          ovaloval:com.redhat.rhsa:tst:20130589021
        • commentemacs-git-el is signed with Red Hat redhatrelease2 key
          ovaloval:com.redhat.rhsa:tst:20101003008
      • AND
        • commentgit-all is earlier than 0:1.7.1-3.el6_4.1
          ovaloval:com.redhat.rhsa:tst:20130589023
        • commentgit-all is signed with Red Hat redhatrelease2 key
          ovaloval:com.redhat.rhsa:tst:20101003010
rhsa
idRHSA-2013:0589
released2013-03-04
severityModerate
titleRHSA-2013:0589: git security update (Moderate)
rpms
  • emacs-git-0:1.7.1-3.el6_4.1
  • emacs-git-el-0:1.7.1-3.el6_4.1
  • git-0:1.7.1-3.el6_4.1
  • git-all-0:1.7.1-3.el6_4.1
  • git-cvs-0:1.7.1-3.el6_4.1
  • git-daemon-0:1.7.1-3.el6_4.1
  • git-debuginfo-0:1.7.1-3.el6_4.1
  • git-email-0:1.7.1-3.el6_4.1
  • git-gui-0:1.7.1-3.el6_4.1
  • git-svn-0:1.7.1-3.el6_4.1
  • gitk-0:1.7.1-3.el6_4.1
  • gitweb-0:1.7.1-3.el6_4.1
  • perl-Git-0:1.7.1-3.el6_4.1