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nessusThis script is Copyright (C) 2010-2021 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DSA-1849.NASL
HistoryFeb 24, 2010 - 12:00 a.m.

Debian DSA-1849-1 : xml-security-c - design flaw

2010-02-2400:00:00
This script is Copyright (C) 2010-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
24

It was discovered that the W3C XML Signature recommendation contains a protocol-level vulnerability related to HMAC output truncation. This update implements the proposed workaround in the C++ version of the Apache implementation of this standard, xml-security-c, by preventing truncation to output strings shorter than 80 bits or half of the original HMAC output, whichever is greater.

#%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-1849. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(44714);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2009-0217");
  script_bugtraq_id(35671);
  script_xref(name:"CERT", value:"466161");
  script_xref(name:"DSA", value:"1849");

  script_name(english:"Debian DSA-1849-1 : xml-security-c - design flaw");
  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:
"It was discovered that the W3C XML Signature recommendation contains a
protocol-level vulnerability related to HMAC output truncation. This
update implements the proposed workaround in the C++ version of the
Apache implementation of this standard, xml-security-c, by preventing
truncation to output strings shorter than 80 bits or half of the
original HMAC output, whichever is greater."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2009/dsa-1849"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the xml-security-c packages.

For the old stable distribution (etch), this problem has been fixed in
version 1.2.1-3+etch1.

For the stable distribution (lenny), this problem has been fixed in
version 1.4.0-3+lenny2."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
  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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xml-security-c");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:4.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/08/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/02/24");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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:"4.0", prefix:"libxml-security-c-dev", reference:"1.2.1-3+etch1")) flag++;
if (deb_check(release:"4.0", prefix:"libxml-security-c-doc", reference:"1.2.1-3+etch1")) flag++;
if (deb_check(release:"4.0", prefix:"libxml-security-c12", reference:"1.2.1-3+etch1")) flag++;
if (deb_check(release:"5.0", prefix:"libxml-security-c-dev", reference:"1.4.0-3+lenny2")) flag++;
if (deb_check(release:"5.0", prefix:"libxml-security-c14", reference:"1.4.0-3+lenny2")) 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_linuxxml-security-cp-cpe:/a:debian:debian_linux:xml-security-c
debiandebian_linux4.0cpe:/o:debian:debian_linux:4.0
debiandebian_linux5.0cpe:/o:debian:debian_linux:5.0