Debian DSA-1276-1 : krb5 - several vulnerabilities

#%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-1276. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(25010);
  script_version("1.22");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2007-0956", "CVE-2007-0957", "CVE-2007-1216");
  script_xref(name:"DSA", value:"1276");

  script_name(english:"Debian DSA-1276-1 : krb5 - several vulnerabilities");
  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:
"Several remote vulnerabilities have been discovered in the MIT
reference implementation of the Kerberos network authentication
protocol suite, which may lead to the execution of arbitrary code. The
Common Vulnerabilities and Exposures project identifies the following
problems :

  - CVE-2007-0956
    It was discovered that the krb5 telnet daemon performs
    insufficient validation of usernames, which might allow
    unauthorized logins or privilege escalation.

  - CVE-2007-0957
    iDefense discovered that a buffer overflow in the
    logging code of the KDC and the administration daemon
    might lead to arbitrary code execution.

  - CVE-2007-1216
    It was discovered that a double free in the RPCSEC_GSS
    part of the GSS library code might lead to arbitrary
    code execution."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2007-0956"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2007-0957"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2007-1216"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2007/dsa-1276"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the Kerberos packages.

For the stable distribution (sarge) these problems have been fixed in
version 1.3.6-2sarge4.

For the upcoming stable distribution (etch) these problems have been
fixed in version 1.4.4-7etch1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'D2ExploitPack');
  script_cwe_id(119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:krb5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:4.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/04/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/04/10");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2021 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:"3.1", prefix:"krb5-admin-server", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"krb5-clients", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"krb5-doc", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"krb5-ftpd", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"krb5-kdc", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"krb5-rsh-server", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"krb5-telnetd", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"krb5-user", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libkadm55", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libkrb5-dev", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libkrb53", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-admin-server", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-clients", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-doc", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-ftpd", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-kdc", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-rsh-server", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-telnetd", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-user", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"libkadm55", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"libkrb5-dbg", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"libkrb5-dev", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"libkrb53", reference:"1.4.4-7etch1")) flag++;

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