CentOS 5 / 6 : cvs (CESA-2012:0321)

2012-02-24T00:00:00
ID CENTOS_RHSA-2012-0321.NASL
Type nessus
Reporter This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2012-02-24T00:00:00

Description

Updated cvs packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 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.

Concurrent Version System (CVS) is a version control system that can record the history of your files.

A heap-based buffer overflow flaw was found in the way the CVS client handled responses from HTTP proxies. A malicious HTTP proxy could use this flaw to cause the CVS client to crash or, possibly, execute arbitrary code with the privileges of the user running the CVS client. (CVE-2012-0804)

All users of cvs are advised to upgrade to these updated packages, which contain a patch to correct this issue.

                                        
                                            #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2012:0321 and 
# CentOS Errata and Security Advisory 2012:0321 respectively.
#

include("compat.inc");

if (description)
{
  script_id(58108);
  script_version("1.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/09/24");

  script_cve_id("CVE-2012-0804");
  script_bugtraq_id(51943);
  script_xref(name:"RHSA", value:"2012:0321");

  script_name(english:"CentOS 5 / 6 : cvs (CESA-2012:0321)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated cvs packages that fix one security issue are now available for
Red Hat Enterprise Linux 5 and 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.

Concurrent Version System (CVS) is a version control system that can
record the history of your files.

A heap-based buffer overflow flaw was found in the way the CVS client
handled responses from HTTP proxies. A malicious HTTP proxy could use
this flaw to cause the CVS client to crash or, possibly, execute
arbitrary code with the privileges of the user running the CVS client.
(CVE-2012-0804)

All users of cvs are advised to upgrade to these updated packages,
which contain a patch to correct this issue."
  );
  # https://lists.centos.org/pipermail/centos-announce/2012-February/018453.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?842e2863"
  );
  # https://lists.centos.org/pipermail/centos-cr-announce/2013-January/000326.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?87a0a9b6"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected cvs packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2012-0804");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:cvs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:cvs-inetd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:6");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/05/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/02/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/02/24");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/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/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^(5|6)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 5.x / 6.x", "CentOS " + os_ver);

if (!get_kb_item("Host/CentOS/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, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-5", reference:"cvs-1.11.22-11.el5_8.1")) flag++;
if (rpm_check(release:"CentOS-5", reference:"cvs-inetd-1.11.22-11.el5_8.1")) flag++;

if (rpm_check(release:"CentOS-6", reference:"cvs-1.11.23-11.el6_2.1")) flag++;


if (flag)
{
  cr_plugin_caveat = '\n' +
    'NOTE: The security advisory associated with this vulnerability has a\n' +
    'fixed package version that may only be available in the continuous\n' +
    'release (CR) repository for CentOS, until it is present in the next\n' +
    'point release of CentOS.\n\n' +

    'If an equal or higher package level does not exist in the baseline\n' +
    'repository for your major version of CentOS, then updates from the CR\n' +
    'repository will need to be applied in order to address the\n' +
    'vulnerability.\n';
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get() + cr_plugin_caveat
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "cvs / cvs-inetd");
}