Debian Security Advisory DSA 2798-1 (curl - unchecked ssl certificate host name)

2013-11-17T00:00:00
ID OPENVAS:892798
Type openvas
Reporter Copyright (c) 2013 Greenbone Networks GmbH http://greenbone.net
Modified 2017-07-07T00:00:00

Description

Scott Cantor discovered that curl, a file retrieval tool, would disable the CURLOPT_SSLVERIFYHOST check when the CURLOPT_SSL_VERIFYPEER setting was disabled. This would also disable ssl certificate host name checks when it should have only disabled verification of the certificate trust chain.

The default configuration for the curl package is not affected by this issue since CURLOPT_SSLVERIFYPEER is enabled by default.

                                        
                                            # OpenVAS Vulnerability Test
# $Id: deb_2798.nasl 6611 2017-07-07 12:07:20Z cfischer $
# Auto-generated from advisory DSA 2798-1 using nvtgen 1.0
# Script version: 1.0
#
# Author:
# Greenbone Networks
#
# Copyright:
# Copyright (c) 2013 Greenbone Networks GmbH http://greenbone.net
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (c) the respective author(s)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#

include("revisions-lib.inc");

tag_affected  = "curl on Debian Linux";
tag_insight   = "curl is a client to get files from servers using any of the supported
protocols. The command is designed to work without user interaction
or any kind of interactivity.";
tag_solution  = "For the oldstable distribution (squeeze), this problem has been fixed in
version 7.21.0-2.1+squeeze5.

For the stable distribution (wheezy), this problem has been fixed in
version 7.26.0-1+wheezy5.

For the testing (jessie) and unstable (sid) distributions, this problem
has been fixed in version 7.33.0-1.

We recommend that you upgrade your curl packages.";
tag_summary   = "Scott Cantor discovered that curl, a file retrieval tool, would disable
the CURLOPT_SSLVERIFYHOST check when the CURLOPT_SSL_VERIFYPEER setting
was disabled. This would also disable ssl certificate host name checks
when it should have only disabled verification of the certificate trust
chain.

The default configuration for the curl package is not affected by this
issue since CURLOPT_SSLVERIFYPEER is enabled by default.";
tag_vuldetect = "This check tests the installed software version using the apt package manager.";

if(description)
{
    script_id(892798);
    script_version("$Revision: 6611 $");
    script_cve_id("CVE-2013-4545");
    script_name("Debian Security Advisory DSA 2798-1 (curl - unchecked ssl certificate host name)");
    script_tag(name: "last_modification", value:"$Date: 2017-07-07 14:07:20 +0200 (Fri, 07 Jul 2017) $");
    script_tag(name: "creation_date", value:"2013-11-17 00:00:00 +0100 (Sun, 17 Nov 2013)");
    script_tag(name: "cvss_base", value:"4.3");
    script_tag(name: "cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");

    script_xref(name: "URL", value: "http://www.debian.org/security/2013/dsa-2798.html");


    script_category(ACT_GATHER_INFO);

    script_copyright("Copyright (c) 2013 Greenbone Networks GmbH http://greenbone.net");
    script_family("Debian Local Security Checks");
    script_dependencies("gather-package-list.nasl");
    script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages");
    script_tag(name: "affected",  value: tag_affected);
    script_tag(name: "insight",   value: tag_insight);
#    script_tag(name: "impact",    value: tag_impact);
    script_tag(name: "solution",  value: tag_solution);
    script_tag(name: "summary",   value: tag_summary);
    script_tag(name: "vuldetect", value: tag_vuldetect);
    script_tag(name:"qod_type", value:"package");
    script_tag(name:"solution_type", value:"VendorFix");

    exit(0);
}

include("pkg-lib-deb.inc");

res = "";
report = "";
if ((res = isdpkgvuln(pkg:"curl", ver:"7.21.0-2.1+squeeze5", rls:"DEB6.0")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libcurl3", ver:"7.21.0-2.1+squeeze5", rls:"DEB6.0")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libcurl3-dbg", ver:"7.21.0-2.1+squeeze5", rls:"DEB6.0")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libcurl3-gnutls", ver:"7.21.0-2.1+squeeze5", rls:"DEB6.0")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libcurl4-gnutls-dev", ver:"7.21.0-2.1+squeeze5", rls:"DEB6.0")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libcurl4-openssl-dev", ver:"7.21.0-2.1+squeeze5", rls:"DEB6.0")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"curl", ver:"7.26.0-1+wheezy5", rls:"DEB7.0")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libcurl3", ver:"7.26.0-1+wheezy5", rls:"DEB7.0")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libcurl3-dbg", ver:"7.26.0-1+wheezy5", rls:"DEB7.0")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libcurl3-gnutls", ver:"7.26.0-1+wheezy5", rls:"DEB7.0")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libcurl3-nss", ver:"7.26.0-1+wheezy5", rls:"DEB7.0")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libcurl4-gnutls-dev", ver:"7.26.0-1+wheezy5", rls:"DEB7.0")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libcurl4-nss-dev", ver:"7.26.0-1+wheezy5", rls:"DEB7.0")) != NULL) {
    report += res;
}
if ((res = isdpkgvuln(pkg:"libcurl4-openssl-dev", ver:"7.26.0-1+wheezy5", rls:"DEB7.0")) != NULL) {
    report += res;
}

if (report != "") {
    security_message(data:report);
} else if (__pkg_match) {
    exit(99); # Not vulnerable.
}