Mandriva Linux Security Advisory : pam (MDVSA-2010:220)

2010-11-0400:00:00

www.tenable.com

CVSS2

6.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

EPSS

Percentile

10.1%

JSON

Multiple vulnerabilities were discovered and corrected in pam :

The pam_xauth module did not verify the return values of the setuid() and setgid() system calls. A local, unprivileged user could use this flaw to execute the xauth command with root privileges and make it read an arbitrary input file (CVE-2010-3316).

The pam_mail module used root privileges while accessing users’ files.
In certain configurations, a local, unprivileged user could use this flaw to obtain limited information about files or directories that they do not have access to (CVE-2010-3435).

The pam_namespace module executed the external script namespace.init with an unchanged environment inherited from an application calling PAM. In cases where such an environment was untrusted (for example, when pam_namespace was configured for setuid applications such as su or sudo), a local, unprivileged user could possibly use this flaw to escalate their privileges (CVE-2010-3853).

Packages for 2009.0 are provided as of the Extended Maintenance Program. Please visit this link to learn more:
http://store.mandriva.com/product_info.php?cPath=149&products_id=4 90

The updated packages have been patched to correct these issues.

#%NASL_MIN_LEVEL 70300

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandriva Linux Security Advisory MDVSA-2010:220. 
# The text itself is copyright (C) Mandriva S.A.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(50472);
  script_version("1.14");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2010-3316", "CVE-2010-3435", "CVE-2010-3853");
  script_bugtraq_id(42472, 43487, 44590);
  script_xref(name:"MDVSA", value:"2010:220");

  script_name(english:"Mandriva Linux Security Advisory : pam (MDVSA-2010:220)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Mandriva Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple vulnerabilities were discovered and corrected in pam :

The pam_xauth module did not verify the return values of the setuid()
and setgid() system calls. A local, unprivileged user could use this
flaw to execute the xauth command with root privileges and make it
read an arbitrary input file (CVE-2010-3316).

The pam_mail module used root privileges while accessing users' files.
In certain configurations, a local, unprivileged user could use this
flaw to obtain limited information about files or directories that
they do not have access to (CVE-2010-3435).

The pam_namespace module executed the external script namespace.init
with an unchanged environment inherited from an application calling
PAM. In cases where such an environment was untrusted (for example,
when pam_namespace was configured for setuid applications such as su
or sudo), a local, unprivileged user could possibly use this flaw to
escalate their privileges (CVE-2010-3853).

Packages for 2009.0 are provided as of the Extended Maintenance
Program. Please visit this link to learn more:
http://store.mandriva.com/product_info.php?cPath=149&amp;products_id=4
90

The updated packages have been patched to correct these issues."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
  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:mandriva:linux:lib64pam-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64pam0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libpam-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libpam0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:pam");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:pam-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2009.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2009.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2010.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2010.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2010/11/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/11/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2021 Tenable Network Security, Inc.");
  script_family(english:"Mandriva Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/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);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);


flag = 0;
if (rpm_check(release:"MDK2009.0", cpu:"x86_64", reference:"lib64pam-devel-0.99.8.1-16.2mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", cpu:"x86_64", reference:"lib64pam0-0.99.8.1-16.2mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", cpu:"i386", reference:"libpam-devel-0.99.8.1-16.2mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", cpu:"i386", reference:"libpam0-0.99.8.1-16.2mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"pam-0.99.8.1-16.2mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"pam-doc-0.99.8.1-16.2mdv2009.0", yank:"mdv")) flag++;

if (rpm_check(release:"MDK2009.1", cpu:"x86_64", reference:"lib64pam-devel-0.99.8.1-20.1mdv2009.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.1", cpu:"x86_64", reference:"lib64pam0-0.99.8.1-20.1mdv2009.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.1", cpu:"i386", reference:"libpam-devel-0.99.8.1-20.1mdv2009.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.1", cpu:"i386", reference:"libpam0-0.99.8.1-20.1mdv2009.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.1", reference:"pam-0.99.8.1-20.1mdv2009.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.1", reference:"pam-doc-0.99.8.1-20.1mdv2009.1", yank:"mdv")) flag++;

if (rpm_check(release:"MDK2010.0", cpu:"x86_64", reference:"lib64pam-devel-1.1.0-6.1mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", cpu:"x86_64", reference:"lib64pam0-1.1.0-6.1mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", cpu:"i386", reference:"libpam-devel-1.1.0-6.1mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", cpu:"i386", reference:"libpam0-1.1.0-6.1mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", reference:"pam-1.1.0-6.1mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", reference:"pam-doc-1.1.0-6.1mdv2010.0", yank:"mdv")) flag++;

if (rpm_check(release:"MDK2010.1", cpu:"x86_64", reference:"lib64pam-devel-1.1.1-2.1mdv2010.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", cpu:"x86_64", reference:"lib64pam0-1.1.1-2.1mdv2010.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", cpu:"i386", reference:"libpam-devel-1.1.1-2.1mdv2010.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", cpu:"i386", reference:"libpam0-1.1.1-2.1mdv2010.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"pam-1.1.1-2.1mdv2010.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"pam-doc-1.1.1-2.1mdv2010.1", yank:"mdv")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");