CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS
Percentile
99.1%
Several problems have been discovered in telnet clients that could be exploited by malicious daemons the client connects to. The Common Vulnerabilities and Exposures project identifies the following problems :
CAN-2005-0468 Gael Delalleau discovered a buffer overflow in the env_opt_add() function that allow a remote attacker to execute arbitrary code.
CAN-2005-0469
Gael Delalleau discovered a buffer overflow in the handling of the LINEMODE suboptions in telnet clients.
This can lead to the execution of arbitrary code when connected to a malicious server.
#%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-703. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(17674);
script_version("1.25");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2005-0468", "CVE-2005-0469");
script_xref(name:"CERT", value:"291924");
script_xref(name:"CERT", value:"341908");
script_xref(name:"DSA", value:"703");
script_name(english:"Debian DSA-703-1 : krb5 - buffer overflows");
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 problems have been discovered in telnet clients that could be
exploited by malicious daemons the client connects to. The Common
Vulnerabilities and Exposures project identifies the following
problems :
- CAN-2005-0468
Gael Delalleau discovered a buffer overflow in the
env_opt_add() function that allow a remote attacker to
execute arbitrary code.
- CAN-2005-0469
Gael Delalleau discovered a buffer overflow in the
handling of the LINEMODE suboptions in telnet clients.
This can lead to the execution of arbitrary code when
connected to a malicious server."
);
script_set_attribute(
attribute:"see_also",
value:"http://www.debian.org/security/2005/dsa-703"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the krb5 package.
For the stable distribution (woody) these problems have been fixed in
version 1.2.4-5woody8."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
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:3.0");
script_set_attribute(attribute:"patch_publication_date", value:"2005/04/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2005/04/02");
script_set_attribute(attribute:"vuln_publication_date", value:"2005/03/28");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2005-2021 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:"3.0", prefix:"krb5-admin-server", reference:"1.2.4-5woody8")) flag++;
if (deb_check(release:"3.0", prefix:"krb5-clients", reference:"1.2.4-5woody8")) flag++;
if (deb_check(release:"3.0", prefix:"krb5-doc", reference:"1.2.4-5woody8")) flag++;
if (deb_check(release:"3.0", prefix:"krb5-ftpd", reference:"1.2.4-5woody8")) flag++;
if (deb_check(release:"3.0", prefix:"krb5-kdc", reference:"1.2.4-5woody8")) flag++;
if (deb_check(release:"3.0", prefix:"krb5-rsh-server", reference:"1.2.4-5woody8")) flag++;
if (deb_check(release:"3.0", prefix:"krb5-telnetd", reference:"1.2.4-5woody8")) flag++;
if (deb_check(release:"3.0", prefix:"krb5-user", reference:"1.2.4-5woody8")) flag++;
if (deb_check(release:"3.0", prefix:"libkadm55", reference:"1.2.4-5woody8")) flag++;
if (deb_check(release:"3.0", prefix:"libkrb5-dev", reference:"1.2.4-5woody8")) flag++;
if (deb_check(release:"3.0", prefix:"libkrb53", reference:"1.2.4-5woody8")) 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");