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
97.5%
Ed Moyle recently found a buffer overflow in Apache-SSL and mod_ssl.
With session caching enabled, mod_ssl will serialize SSL session variables to store them for later use. These variables were stored in a buffer of a fixed size without proper boundary checks.
To exploit the overflow, the server must be configured to require client certificates, and an attacker must obtain a carefully crafted client certificate that has been signed by a Certificate Authority which is trusted by the server. If these conditions are met, it would be possible for an attacker to execute arbitrary code on the 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-120. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(14957);
script_version("1.22");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2002-0082");
script_xref(name:"DSA", value:"120");
script_name(english:"Debian DSA-120-1 : mod_ssl - buffer overflow");
script_summary(english:"Checks dpkg output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security-related update."
);
script_set_attribute(
attribute:"description",
value:
"Ed Moyle recently found a buffer overflow in Apache-SSL and mod_ssl.
With session caching enabled, mod_ssl will serialize SSL session
variables to store them for later use. These variables were stored in
a buffer of a fixed size without proper boundary checks.
To exploit the overflow, the server must be configured to require
client certificates, and an attacker must obtain a carefully crafted
client certificate that has been signed by a Certificate Authority
which is trusted by the server. If these conditions are met, it would
be possible for an attacker to execute arbitrary code on the server."
);
script_set_attribute(
attribute:"see_also",
value:"http://archives.neohapsis.com/archives/bugtraq/2002-02/0313.html"
);
script_set_attribute(
attribute:"see_also",
value:"http://www.debian.org/security/2002/dsa-120"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the Apache-SSL and mod_ssl packages.
This problem has been fixed in version 1.3.9.13-4 of Apache-SSL and
version 2.4.10-1.3.9-1potato1 of libapache-mod-ssl for the stable
Debian distribution as well as in version 1.3.23.1+1.47-1 of
Apache-SSL and version 2.8.7-1 of libapache-mod-ssl for the testing
and unstable distribution of Debian."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache-ssl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libapache-mod-ssl");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:2.2");
script_set_attribute(attribute:"patch_publication_date", value:"2002/03/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2004/09/29");
script_set_attribute(attribute:"vuln_publication_date", value:"2002/02/27");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2004-2021 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:"2.2", prefix:"apache-ssl", reference:"1.3.9.13-4")) flag++;
if (deb_check(release:"2.2", prefix:"libapache-mod-ssl", reference:"2.4.10-1.3.9-1potato1")) flag++;
if (deb_check(release:"2.2", prefix:"libapache-mod-ssl-doc", reference:"2.4.10-1.3.9-1potato1")) 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 | apache-ssl | p-cpe:/a:debian:debian_linux:apache-ssl |
debian | debian_linux | libapache-mod-ssl | p-cpe:/a:debian:debian_linux:libapache-mod-ssl |
debian | debian_linux | 2.2 | cpe:/o:debian:debian_linux:2.2 |