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nessusThis script is Copyright (C) 2008-2021 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DSA-1563.NASL
HistoryMay 02, 2008 - 12:00 a.m.

Debian DSA-1563-1 : asterisk - programming error

2008-05-0200:00:00
This script is Copyright (C) 2008-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
18

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

EPSS

0.939

Percentile

99.1%

Joel R. Voss discovered that the IAX2 module of Asterisk, a free software PBX and telephony toolkit performs insufficient validation of IAX2 protocol messages, which may lead to denial of service.

#%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-1563. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(32125);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2008-1897");
  script_bugtraq_id(28901);
  script_xref(name:"DSA", value:"1563");

  script_name(english:"Debian DSA-1563-1 : asterisk - programming error");
  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:
"Joel R. Voss discovered that the IAX2 module of Asterisk, a free
software PBX and telephony toolkit performs insufficient validation of
IAX2 protocol messages, which may lead to denial of service."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2008/dsa-1563"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the asterisk packages.

For the stable distribution (etch), this problem has been fixed in
version 1.2.13~dfsg-2etch4."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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_cwe_id(287);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:4.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/04/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/05/02");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2021 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:"asterisk", reference:"1.2.13~dfsg-2etch4")) flag++;
if (deb_check(release:"4.0", prefix:"asterisk-bristuff", reference:"1.2.13~dfsg-2etch4")) flag++;
if (deb_check(release:"4.0", prefix:"asterisk-classic", reference:"1.2.13~dfsg-2etch4")) flag++;
if (deb_check(release:"4.0", prefix:"asterisk-config", reference:"1.2.13~dfsg-2etch4")) flag++;
if (deb_check(release:"4.0", prefix:"asterisk-dev", reference:"1.2.13~dfsg-2etch4")) flag++;
if (deb_check(release:"4.0", prefix:"asterisk-doc", reference:"1.2.13~dfsg-2etch4")) flag++;
if (deb_check(release:"4.0", prefix:"asterisk-h323", reference:"1.2.13~dfsg-2etch4")) flag++;
if (deb_check(release:"4.0", prefix:"asterisk-sounds-main", reference:"1.2.13~dfsg-2etch4")) flag++;
if (deb_check(release:"4.0", prefix:"asterisk-web-vmail", reference:"1.2.13~dfsg-2etch4")) 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");

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

EPSS

0.939

Percentile

99.1%