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
93.7%
Several security relevant problems have been discovered in lsh, the alternative secure shell v2 (SSH2) protocol server. The Common Vulnerabilities and Exposures project identifies the following vulnerabilities :
CAN-2003-0826 Bennett Todd discovered a heap buffer overflow in lshd which could lead to the execution of arbitrary code.
CAN-2005-0814
Niels Moller discovered a denial of service condition in lshd.
#%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-717. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(18153);
script_version("1.22");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2003-0826", "CVE-2005-0814");
script_xref(name:"DSA", value:"717");
script_name(english:"Debian DSA-717-1 : lsh-utils - buffer overflow, typo");
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 security relevant problems have been discovered in lsh, the
alternative secure shell v2 (SSH2) protocol server. The Common
Vulnerabilities and Exposures project identifies the following
vulnerabilities :
- CAN-2003-0826
Bennett Todd discovered a heap buffer overflow in lshd
which could lead to the execution of arbitrary code.
- CAN-2005-0814
Niels Moller discovered a denial of service condition
in lshd."
);
script_set_attribute(
attribute:"see_also",
value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=211662"
);
script_set_attribute(
attribute:"see_also",
value:"http://www.debian.org/security/2005/dsa-717"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the lsh-server package.
For the stable distribution (woody) these problems have been fixed in
version 1.2.5-2woody3."
);
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:lsh-utils");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.0");
script_set_attribute(attribute:"patch_publication_date", value:"2005/04/27");
script_set_attribute(attribute:"plugin_publication_date", value:"2005/04/28");
script_set_attribute(attribute:"vuln_publication_date", value:"2003/09/20");
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:"lsh-client", reference:"1.2.5-2woody3")) flag++;
if (deb_check(release:"3.0", prefix:"lsh-server", reference:"1.2.5-2woody3")) flag++;
if (deb_check(release:"3.0", prefix:"lsh-utils", reference:"1.2.5-2woody3")) flag++;
if (deb_check(release:"3.0", prefix:"lsh-utils-doc", reference:"1.2.5-2woody3")) 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");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | lsh-utils | p-cpe:/a:debian:debian_linux:lsh-utils |
debian | debian_linux | 3.0 | cpe:/o:debian:debian_linux:3.0 |