CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS
Percentile
99.7%
Several remote vulnerabilities have been discovered in the MIT reference implementation of the Kerberos network authentication protocol suite, which may lead to the execution of arbitrary code. The Common Vulnerabilities and Exposures project identifies the following problems :
CVE-2007-0956 It was discovered that the krb5 telnet daemon performs insufficient validation of usernames, which might allow unauthorized logins or privilege escalation.
CVE-2007-0957 iDefense discovered that a buffer overflow in the logging code of the KDC and the administration daemon might lead to arbitrary code execution.
CVE-2007-1216 It was discovered that a double free in the RPCSEC_GSS part of the GSS library code might lead to arbitrary code execution.
#%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-1276. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(25010);
script_version("1.22");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2007-0956", "CVE-2007-0957", "CVE-2007-1216");
script_xref(name:"DSA", value:"1276");
script_name(english:"Debian DSA-1276-1 : krb5 - several vulnerabilities");
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 remote vulnerabilities have been discovered in the MIT
reference implementation of the Kerberos network authentication
protocol suite, which may lead to the execution of arbitrary code. The
Common Vulnerabilities and Exposures project identifies the following
problems :
- CVE-2007-0956
It was discovered that the krb5 telnet daemon performs
insufficient validation of usernames, which might allow
unauthorized logins or privilege escalation.
- CVE-2007-0957
iDefense discovered that a buffer overflow in the
logging code of the KDC and the administration daemon
might lead to arbitrary code execution.
- CVE-2007-1216
It was discovered that a double free in the RPCSEC_GSS
part of the GSS library code might lead to arbitrary
code execution."
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2007-0956"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2007-0957"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2007-1216"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2007/dsa-1276"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the Kerberos packages.
For the stable distribution (sarge) these problems have been fixed in
version 1.3.6-2sarge4.
For the upcoming stable distribution (etch) these problems have been
fixed in version 1.4.4-7etch1."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A: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_canvas", value:"true");
script_set_attribute(attribute:"canvas_package", value:'D2ExploitPack');
script_cwe_id(119);
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:3.1");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:4.0");
script_set_attribute(attribute:"patch_publication_date", value:"2007/04/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2007/04/10");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2007-2021 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:"3.1", prefix:"krb5-admin-server", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"krb5-clients", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"krb5-doc", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"krb5-ftpd", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"krb5-kdc", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"krb5-rsh-server", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"krb5-telnetd", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"krb5-user", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libkadm55", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libkrb5-dev", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"3.1", prefix:"libkrb53", reference:"1.3.6-2sarge4")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-admin-server", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-clients", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-doc", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-ftpd", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-kdc", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-rsh-server", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-telnetd", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"krb5-user", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"libkadm55", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"libkrb5-dbg", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"libkrb5-dev", reference:"1.4.4-7etch1")) flag++;
if (deb_check(release:"4.0", prefix:"libkrb53", reference:"1.4.4-7etch1")) 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");
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0956
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0957
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1216
security-tracker.debian.org/tracker/CVE-2007-0956
security-tracker.debian.org/tracker/CVE-2007-0957
security-tracker.debian.org/tracker/CVE-2007-1216
www.debian.org/security/2007/dsa-1276