Ben Hawkes and Tavis Ormandy discovered that the dynamic loader in GNU libc allows local users to gain root privileges using a crafted LD_AUDIT environment variable.
#%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-2122. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(50309);
script_version("1.17");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2010-3847", "CVE-2010-3856");
script_bugtraq_id(44154);
script_xref(name:"DSA", value:"2122");
script_name(english:"Debian DSA-2122-1 : glibc - missing input sanitization");
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:
"Ben Hawkes and Tavis Ormandy discovered that the dynamic loader in GNU
libc allows local users to gain root privileges using a crafted
LD_AUDIT environment variable."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=600667"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2010/dsa-2122"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the glibc packages.
For the stable distribution (lenny), this problem has been fixed in
version 2.7-18lenny6.
For the upcoming stable distribution (squeeze), this problem has been
fixed in version 2.11.2-6+squeeze1 of the eglibc package."
);
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC: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_core", value:"true");
script_set_attribute(attribute:"metasploit_name", value:'glibc LD_AUDIT Arbitrary DSO Load Privilege Escalation');
script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
script_set_attribute(attribute:"canvas_package", value:'CANVAS');
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:glibc");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");
script_set_attribute(attribute:"patch_publication_date", value:"2010/10/22");
script_set_attribute(attribute:"plugin_publication_date", value:"2010/10/24");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2010-2021 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:"5.0", prefix:"glibc-doc", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"glibc-source", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-amd64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dbg", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev-amd64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev-i386", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev-mips64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev-mipsn32", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev-ppc64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev-s390x", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev-sparc64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-i386", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-i686", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-mips64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-mipsn32", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-pic", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-ppc64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-prof", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-s390x", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-sparc64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-sparcv9b", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-xen", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6.1", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6.1-alphaev67", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6.1-dbg", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6.1-dev", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6.1-pic", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6.1-prof", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"locales", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"locales-all", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"nscd", reference:"2.7-18lenny6")) 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 | glibc | p-cpe:/a:debian:debian_linux:glibc |
debian | debian_linux | 5.0 | cpe:/o:debian:debian_linux:5.0 |