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nessusThis script is Copyright (C) 2013-2022 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DSA-2621.NASL
HistoryFeb 14, 2013 - 12:00 a.m.

Debian DSA-2621-1 : openssl - several vulnerabilities

2013-02-1400:00:00
This script is Copyright (C) 2013-2022 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
19

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.007 Low

EPSS

Percentile

80.1%

Multiple vulnerabilities have been found in OpenSSL. The Common Vulnerabilities and Exposures project identifies the following issues :

  • CVE-2013-0166 OpenSSL does not properly perform signature verification for OCSP responses, which allows remote attackers to cause a denial of service via an invalid key.

  • CVE-2013-0169 A timing side channel attack has been found in CBC padding allowing an attacker to recover pieces of plaintext via statistical analysis of crafted packages, known as the ‘Lucky Thirteen’ issue.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2621. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(64623);
  script_version("1.18");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/05");

  script_cve_id("CVE-2013-0166", "CVE-2013-0169");
  script_bugtraq_id(57755, 57778);
  script_xref(name:"DSA", value:"2621");
  script_xref(name:"CEA-ID", value:"CEA-2019-0547");

  script_name(english:"Debian DSA-2621-1 : openssl - several vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
  script_set_attribute(attribute:"description", value:
"Multiple vulnerabilities have been found in OpenSSL. The Common
Vulnerabilities and Exposures project identifies the following issues
:

  - CVE-2013-0166
    OpenSSL does not properly perform signature verification
    for OCSP responses, which allows remote attackers to
    cause a denial of service via an invalid key.

  - CVE-2013-0169
    A timing side channel attack has been found in CBC
    padding allowing an attacker to recover pieces of
    plaintext via statistical analysis of crafted packages,
    known as the 'Lucky Thirteen' issue.");
  script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699889");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2013-0166");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2013-0169");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/squeeze/openssl");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2013/dsa-2621");
  script_set_attribute(attribute:"solution", value:
"Upgrade the openssl packages.

For the stable distribution (squeeze), these problems have been fixed
in version 0.9.8o-4squeeze14.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:"patch_publication_date", value:"2013/02/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/02/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openssl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2013-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"6.0", prefix:"libcrypto0.9.8-udeb", reference:"0.9.8o-4squeeze14")) flag++;
if (deb_check(release:"6.0", prefix:"libssl-dev", reference:"0.9.8o-4squeeze14")) flag++;
if (deb_check(release:"6.0", prefix:"libssl0.9.8", reference:"0.9.8o-4squeeze14")) flag++;
if (deb_check(release:"6.0", prefix:"libssl0.9.8-dbg", reference:"0.9.8o-4squeeze14")) flag++;
if (deb_check(release:"6.0", prefix:"openssl", reference:"0.9.8o-4squeeze14")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
VendorProductVersionCPE
debiandebian_linuxopensslp-cpe:/a:debian:debian_linux:openssl
debiandebian_linux6.0cpe:/o:debian:debian_linux:6.0

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.007 Low

EPSS

Percentile

80.1%