Debian DSA-1174-1 : openssl096 - cryptographic weakness

2006-10-14T00:00:00
ID DEBIAN_DSA-1174.NASL
Type nessus
Reporter Tenable
Modified 2017-02-17T00:00:00

Description

Daniel Bleichenbacher discovered a flaw in the OpenSSL cryptographic package that could allow an attacker to generate a forged signature that OpenSSL will accept as valid.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-1174. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(22716);
  script_version("$Revision: 1.15 $");
  script_cvs_date("$Date: 2017/02/17 15:06:27 $");

  script_cve_id("CVE-2006-4339", "CVE-2006-5201", "CVE-2006-7140");
  script_bugtraq_id(19849);
  script_osvdb_id(28549);
  script_xref(name:"DSA", value:"1174");

  script_name(english:"Debian DSA-1174-1 : openssl096 - cryptographic weakness");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Daniel Bleichenbacher discovered a flaw in the OpenSSL cryptographic
package that could allow an attacker to generate a forged signature
that OpenSSL will accept as valid."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=386247"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2006/dsa-1174"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the openssl packages. Note that services linking against the
openssl shared libraries will need to be restarted. Common examples of
such services include most Mail Transport Agents, SSH servers, and web
servers.

For the stable distribution (sarge) this problem has been fixed in
version 0.9.6m-1sarge2.

This package exists only for compatibility with older software, and is
not present in the unstable or testing branches of Debian."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:ND/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(310);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openssl096");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/09/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/10/14");
  script_set_attribute(attribute:"vuln_publication_date", value:"2006/09/05");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2017 Tenable Network Security, Inc.");
  script_family(english:"Debian Local Security Checks");

  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:"3.1", prefix:"libssl0.9.6", reference:"0.9.6m-1sarge2")) 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");