CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS
Percentile
84.4%
Amit Klein discovered that pdns-recursor, a caching DNS resolver, uses a weak random number generator to create DNS transaction IDs and UDP source port numbers. As a result, cache poisoning attacks were simplified. (CVE-2008-1637 and CVE-2008-3217 )
#%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-1544. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(31950);
script_version("1.16");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2008-1637", "CVE-2008-3217");
script_xref(name:"DSA", value:"1544");
script_name(english:"Debian DSA-1544-2 : pdns-recursor - design flaw");
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:
"Amit Klein discovered that pdns-recursor, a caching DNS resolver, uses
a weak random number generator to create DNS transaction IDs and UDP
source port numbers. As a result, cache poisoning attacks were
simplified. (CVE-2008-1637 and CVE-2008-3217 )"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2008-1637"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2008-3217"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2008/dsa-1544"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the pdns-recursor package.
For the stable distribution (etch), these problems have been fixed in
version 3.1.4-1+etch2."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_cwe_id(189);
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-recursor");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:4.0");
script_set_attribute(attribute:"patch_publication_date", value:"2008/07/16");
script_set_attribute(attribute:"plugin_publication_date", value:"2008/04/17");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2008-2021 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:"4.0", prefix:"pdns-recursor", reference:"3.1.4-1+etch2")) 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");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | pdns-recursor | p-cpe:/a:debian:debian_linux:pdns-recursor |
debian | debian_linux | 4.0 | cpe:/o:debian:debian_linux:4.0 |