Debian DSA-075-1 : netkit-telnet-ssl - remote exploit

2004-09-29T00:00:00
ID DEBIAN_DSA-075.NASL
Type nessus
Reporter Tenable
Modified 2018-08-09T00:00:00

Description

The telnet daemon contained in the netkit-telnet-ssl_0.16.3-1 package in the 'stable' (potato) distribution of Debian GNU/Linux is vulnerable to an exploitable overflow in its output handling. The original bug was found by <scut@nb.in-berlin.de>, and announced to bugtraq on Jul 18 2001. At that time, netkit-telnet versions after 0.14 were not believed to be vulnerable.

On Aug 10 2001, zen-parse posted an advisory based on the same problem, for all netkit-telnet versions below 0.17.

More details can be found on SecurityFocus. As Debian uses the 'telnetd' user to run in.telnetd, this is not a remote root compromise on Debian systems; the 'telnetd' user can be compromised.

We strongly advise you update your netkit-telnet-ssl packages to the versions listed below.

                                        
                                            #%NASL_MIN_LEVEL 70103

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-075. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(14912);
  script_version("1.19");
  script_cvs_date("Date: 2018/08/09 17:06:36");

  script_cve_id("CVE-2001-0554");
  script_xref(name:"DSA", value:"075");

  script_name(english:"Debian DSA-075-1 : netkit-telnet-ssl - remote exploit");
  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:
"The telnet daemon contained in the netkit-telnet-ssl_0.16.3-1 package
 in the 'stable' (potato) distribution of Debian GNU/Linux is
 vulnerable to an exploitable overflow in its output handling. The
 original bug was found by &lt;scut@nb.in-berlin.de&gt;, and announced to
 bugtraq on Jul 18 2001. At that time, netkit-telnet versions after
 0.14 were not believed to be vulnerable.

On Aug 10 2001, zen-parse posted an advisory based on the same
problem, for all netkit-telnet versions below 0.17.

More details can be found on SecurityFocus. As Debian uses the
'telnetd' user to run in.telnetd, this is not a remote root compromise
on Debian systems; the 'telnetd' user can be compromised.

We strongly advise you update your netkit-telnet-ssl packages to the
versions listed below."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://online.securityfocus.com/archive/1/203000"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2001/dsa-075"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Upgrade the affected netkit-telnet-ssl package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:netkit-telnet-ssl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:2.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2001/08/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/09/29");
  script_set_attribute(attribute:"vuln_publication_date", value:"2001/07/18");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2018 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:"2.2", prefix:"ssltelnet", reference:"0.16.3-1.1")) flag++;
if (deb_check(release:"2.2", prefix:"telnet-ssl", reference:"0.16.3-1.1")) flag++;
if (deb_check(release:"2.2", prefix:"telnetd-ssl", reference:"0.16.3-1.1")) flag++;

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