Mandrake Linux Security Advisory : openssl (MDKSA-2007:193)

2007-10-09T00:00:00
ID MANDRAKE_MDKSA-2007-193.NASL
Type nessus
Reporter Tenable
Modified 2016-11-28T00:00:00

Description

A flaw in how OpenSSL performed Montgomery multiplications was discovered %that could allow a local attacker to reconstruct RSA private keys by examining another user's OpenSSL processes (CVE-2007-3108).

Moritz Jodeit found that OpenSSL's SSL_get_shared_ciphers() function did not correctly check the size of the buffer it was writing to. As a result, a remote attacker could exploit this to write one NULL byte past the end of the applications's cipher list buffer, which could possibly lead to a denial of service or the execution of arbitrary code (CVE-2007-5135).

Updated packages have been patched to prevent these issues.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandrake Linux Security Advisory MDKSA-2007:193. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(26950);
  script_version ("$Revision: 1.16 $");
  script_cvs_date("$Date: 2016/11/28 21:39:22 $");

  script_cve_id("CVE-2006-3738", "CVE-2007-3108", "CVE-2007-5135");
  script_xref(name:"MDKSA", value:"2007:193");

  script_name(english:"Mandrake Linux Security Advisory : openssl (MDKSA-2007:193)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Mandrake Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A flaw in how OpenSSL performed Montgomery multiplications was
discovered %that could allow a local attacker to reconstruct RSA
private keys by examining another user's OpenSSL processes
(CVE-2007-3108).

Moritz Jodeit found that OpenSSL's SSL_get_shared_ciphers() function
did not correctly check the size of the buffer it was writing to. As a
result, a remote attacker could exploit this to write one NULL byte
past the end of the applications's cipher list buffer, which could
possibly lead to a denial of service or the execution of arbitrary
code (CVE-2007-5135).

Updated packages have been patched to prevent these issues."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_cwe_id(119, 189);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64openssl0.9.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64openssl0.9.8-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64openssl0.9.8-static-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libopenssl0.9.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libopenssl0.9.8-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libopenssl0.9.8-static-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:openssl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2007");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2007.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/10/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/10/09");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2016 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:"MDK2007.0", cpu:"x86_64", reference:"lib64openssl0.9.8-0.9.8b-2.3mdv2007.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2007.0", cpu:"x86_64", reference:"lib64openssl0.9.8-devel-0.9.8b-2.3mdv2007.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2007.0", cpu:"x86_64", reference:"lib64openssl0.9.8-static-devel-0.9.8b-2.3mdv2007.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2007.0", cpu:"i386", reference:"libopenssl0.9.8-0.9.8b-2.3mdv2007.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2007.0", cpu:"i386", reference:"libopenssl0.9.8-devel-0.9.8b-2.3mdv2007.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2007.0", cpu:"i386", reference:"libopenssl0.9.8-static-devel-0.9.8b-2.3mdv2007.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2007.0", reference:"openssl-0.9.8b-2.3mdv2007.0", yank:"mdv")) flag++;

if (rpm_check(release:"MDK2007.1", cpu:"x86_64", reference:"lib64openssl0.9.8-0.9.8e-2.2mdv2007.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2007.1", cpu:"x86_64", reference:"lib64openssl0.9.8-devel-0.9.8e-2.2mdv2007.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2007.1", cpu:"x86_64", reference:"lib64openssl0.9.8-static-devel-0.9.8e-2.2mdv2007.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2007.1", cpu:"i386", reference:"libopenssl0.9.8-0.9.8e-2.2mdv2007.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2007.1", cpu:"i386", reference:"libopenssl0.9.8-devel-0.9.8e-2.2mdv2007.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2007.1", cpu:"i386", reference:"libopenssl0.9.8-static-devel-0.9.8e-2.2mdv2007.1", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2007.1", reference:"openssl-0.9.8e-2.2mdv2007.1", yank:"mdv")) flag++;


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