CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
Percentile
86.1%
Several problems have been discovered in pdns, a versatile nameserver that can lead to a denial of service. The Common Vulnerabilities and Exposures project identifies the following problems :
CAN-2005-2301 Norbert Sendetzky and Jan de Groot discovered that the LDAP backend did not properly escape all queries, allowing it to fail and not answer queries anymore.
CAN-2005-2302
Wilco Baan discovered that queries from clients without recursion permission can temporarily blank out domains to clients with recursion permitted. This enables outside users to blank out a domain temporarily to normal users.
#%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-771. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(19336);
script_version("1.20");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2005-2301", "CVE-2005-2302");
script_xref(name:"DSA", value:"771");
script_name(english:"Debian DSA-771-1 : pdns - 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 problems have been discovered in pdns, a versatile nameserver
that can lead to a denial of service. The Common Vulnerabilities and
Exposures project identifies the following problems :
- CAN-2005-2301
Norbert Sendetzky and Jan de Groot discovered that the
LDAP backend did not properly escape all queries,
allowing it to fail and not answer queries anymore.
- CAN-2005-2302
Wilco Baan discovered that queries from clients without
recursion permission can temporarily blank out domains
to clients with recursion permitted. This enables
outside users to blank out a domain temporarily to
normal users."
);
script_set_attribute(
attribute:"see_also",
value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=318798"
);
script_set_attribute(
attribute:"see_also",
value:"http://www.debian.org/security/2005/dsa-771"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the pdns package.
The old stable distribution (woody) does not contain pdns packages.
For the stable distribution (sarge) these problems have been fixed in
version 2.9.17-13sarge1."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.1");
script_set_attribute(attribute:"patch_publication_date", value:"2005/08/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2005/08/01");
script_set_attribute(attribute:"vuln_publication_date", value:"2005/07/16");
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:"3.1", prefix:"pdns", reference:"2.9.17-13sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"pdns-backend-geo", reference:"2.9.17-13sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"pdns-backend-ldap", reference:"2.9.17-13sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"pdns-backend-mysql", reference:"2.9.17-13sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"pdns-backend-pgsql", reference:"2.9.17-13sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"pdns-backend-pipe", reference:"2.9.17-13sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"pdns-backend-sqlite", reference:"2.9.17-13sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"pdns-doc", reference:"2.9.17-13sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"pdns-recursor", reference:"2.9.17-13sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"pdns-server", reference:"2.9.17-13sarge1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");