The remote host is missing an update for the Debian 'dhcp3' package(s) announced via the DSA-2217-1 advisory by Greenbone AG. Sebastian Krahmer and Marius Tomaschewski discovered that dhclient of dhcp3, a DHCP client, is not properly filtering shell meta-characters in certain options in DHCP server responses, allowing an attacker to execute arbitrary commands with the privileges of such a process by sending crafted DHCP options to a client using a rogue server
Reporter | Title | Published | Views | Family All 112 |
---|---|---|---|---|
![]() | RedHat Update for dhcp RHSA-2011:0428-01 | 11 Apr 201100:00 | – | openvas |
![]() | Debian: Security Advisory (DSA-2216-1) | 12 May 201100:00 | – | openvas |
![]() | RedHat Update for dhcp RHSA-2011:0428-01 | 11 Apr 201100:00 | – | openvas |
![]() | Oracle: Security Advisory (ELSA-2011-0428) | 6 Oct 201500:00 | – | openvas |
![]() | FreeBSD Ports: isc-dhcp31-client | 12 May 201100:00 | – | openvas |
![]() | Slackware Advisory SSA:2011-097-01 dhcp | 11 Sep 201200:00 | – | openvas |
![]() | FreeBSD Ports: isc-dhcp31-client | 12 May 201100:00 | – | openvas |
![]() | CentOS Update for dhclient CESA-2011:0428 centos5 i386 | 9 Aug 201100:00 | – | openvas |
![]() | CentOS Update for dhclient CESA-2011:0428 centos5 x86_64 | 30 Jul 201200:00 | – | openvas |
![]() | CentOS Update for dhclient CESA-2011:0428 centos5 i386 | 9 Aug 201100:00 | – | openvas |
Source | Link |
---|---|
debian | www.debian.org/security/2011/DSA-2217-1 |
security-tracker | www.security-tracker.debian.org/tracker/DSA-2217 |
# SPDX-FileCopyrightText: 2011 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.69561");
script_cve_id("CVE-2011-0997");
script_tag(name:"creation_date", value:"2011-05-12 17:21:50 +0000 (Thu, 12 May 2011)");
script_version("2024-02-01T14:37:10+0000");
script_tag(name:"last_modification", value:"2024-02-01 14:37:10 +0000 (Thu, 01 Feb 2024)");
script_tag(name:"cvss_base", value:"7.5");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_name("Debian: Security Advisory (DSA-2217-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2011 Greenbone AG");
script_family("Debian Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB5");
script_xref(name:"Advisory-ID", value:"DSA-2217-1");
script_xref(name:"URL", value:"https://www.debian.org/security/2011/DSA-2217-1");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-2217");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'dhcp3' package(s) announced via the DSA-2217-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Sebastian Krahmer and Marius Tomaschewski discovered that dhclient of dhcp3, a DHCP client, is not properly filtering shell meta-characters in certain options in DHCP server responses. These options are reused in an insecure fashion by dhclient scripts. This allows an attacker to execute arbitrary commands with the privileges of such a process by sending crafted DHCP options to a client using a rogue server.
For the oldstable distribution (lenny), this problem has been fixed in version 3.1.1-6+lenny5.
For the stable (squeeze), testing (wheezy) and unstable (sid) distributions, this problem has been fixed in an additional update for isc-dhcp.
We recommend that you upgrade your dhcp3 packages.");
script_tag(name:"affected", value:"'dhcp3' package(s) on Debian 5.");
script_tag(name:"solution", value:"Please install the updated package(s).");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"qod_type", value:"package");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-deb.inc");
release = dpkg_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "DEB5") {
if(!isnull(res = isdpkgvuln(pkg:"dhcp-client", ver:"3.1.1-6+lenny5", rls:"DEB5"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dhcp3-client", ver:"3.1.1-6+lenny5", rls:"DEB5"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dhcp3-client-udeb", ver:"3.1.1-6+lenny5", rls:"DEB5"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dhcp3-common", ver:"3.1.1-6+lenny5", rls:"DEB5"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dhcp3-dev", ver:"3.1.1-6+lenny5", rls:"DEB5"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dhcp3-relay", ver:"3.1.1-6+lenny5", rls:"DEB5"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dhcp3-server", ver:"3.1.1-6+lenny5", rls:"DEB5"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dhcp3-server-ldap", ver:"3.1.1-6+lenny5", rls:"DEB5"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
Transform Your Security Services
Elevate your offerings with Vulners' advanced Vulnerability Intelligence. Contact us for a demo and discover the difference comprehensive, actionable intelligence can make in your security strategy.
Book a live demo