RedHat Security Advisory RHSA-2009:1580

2009-11-17T00:00:00
ID OPENVAS:136141256231066240
Type openvas
Reporter Copyright (c) 2009 E-Soft Inc. http://www.securityspace.com
Modified 2018-04-06T00:00:00

Description

The remote host is missing updates announced in advisory RHSA-2009:1580.

The Apache HTTP Server is a popular Web server.

A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure Sockets Layer) protocols handle session renegotiation. A man-in-the-middle attacker could use this flaw to prefix arbitrary plain text to a client's session (for example, an HTTPS connection to a website). This could force the server to process an attacker's request as if authenticated using the victim's credentials. This update partially mitigates this flaw for SSL sessions to HTTP servers using mod_ssl by rejecting client-requested renegotiation. (CVE-2009-3555)

Note: This update does not fully resolve the issue for HTTPS servers. An attack is still possible in configurations that require a server-initiated renegotiation. Refer to the following Knowledgebase article for further information: http://kbase.redhat.com/faq/docs/DOC-20491

A denial of service flaw was found in the Apache mod_deflate module. This module continued to compress large files until compression was complete, even if the network connection that requested the content was closed before compression completed. This would cause mod_deflate to consume large amounts of CPU if mod_deflate was enabled for a large file. (CVE-2009-1891)

A NULL pointer dereference flaw was found in the Apache mod_proxy_ftp module. A malicious FTP server to which requests are being proxied could use this flaw to crash an httpd child process via a malformed reply to the EPSV or PASV commands, resulting in a limited denial of service. (CVE-2009-3094)

A second flaw was found in the Apache mod_proxy_ftp module. In a reverse proxy configuration, a remote attacker could use this flaw to bypass intended access restrictions by creating a carefully-crafted HTTP Authorization header, allowing the attacker to send arbitrary commands to the FTP server. (CVE-2009-3095)

All httpd users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

                                        
                                            # OpenVAS Vulnerability Test
# $Id: RHSA_2009_1580.nasl 9350 2018-04-06 07:03:33Z cfischer $
# Description: Auto-generated from advisory RHSA-2009:1580 ()
#
# Authors:
# Thomas Reinke <reinke@securityspace.com>
#
# Copyright:
# Copyright (c) 2009 E-Soft Inc. http://www.securityspace.com
# 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 version 2,
# or at your option, GNU General Public License version 3,
# as published by the Free Software Foundation
#
# 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_summary = "The remote host is missing updates announced in
advisory RHSA-2009:1580.

The Apache HTTP Server is a popular Web server.

A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure
Sockets Layer) protocols handle session renegotiation. A man-in-the-middle
attacker could use this flaw to prefix arbitrary plain text to a client's
session (for example, an HTTPS connection to a website). This could force
the server to process an attacker's request as if authenticated using the
victim's credentials. This update partially mitigates this flaw for SSL
sessions to HTTP servers using mod_ssl by rejecting client-requested
renegotiation. (CVE-2009-3555)

Note: This update does not fully resolve the issue for HTTPS servers. An
attack is still possible in configurations that require a server-initiated
renegotiation. Refer to the following Knowledgebase article for further
information: http://kbase.redhat.com/faq/docs/DOC-20491

A denial of service flaw was found in the Apache mod_deflate module. This
module continued to compress large files until compression was complete,
even if the network connection that requested the content was closed before
compression completed. This would cause mod_deflate to consume large
amounts of CPU if mod_deflate was enabled for a large file. (CVE-2009-1891)

A NULL pointer dereference flaw was found in the Apache mod_proxy_ftp
module. A malicious FTP server to which requests are being proxied could
use this flaw to crash an httpd child process via a malformed reply to the
EPSV or PASV commands, resulting in a limited denial of service.
(CVE-2009-3094)

A second flaw was found in the Apache mod_proxy_ftp module. In a reverse
proxy configuration, a remote attacker could use this flaw to bypass
intended access restrictions by creating a carefully-crafted HTTP
Authorization header, allowing the attacker to send arbitrary commands to
the FTP server. (CVE-2009-3095)

All httpd users should upgrade to these updated packages, which contain
backported patches to correct these issues. After installing the updated
packages, the httpd daemon must be restarted for the update to take effect.";

tag_solution = "Please note that this update is available via
Red Hat Network.  To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date";



if(description)
{
 script_oid("1.3.6.1.4.1.25623.1.0.66240");
 script_version("$Revision: 9350 $");
 script_tag(name:"last_modification", value:"$Date: 2018-04-06 09:03:33 +0200 (Fri, 06 Apr 2018) $");
 script_tag(name:"creation_date", value:"2009-11-17 21:42:12 +0100 (Tue, 17 Nov 2009)");
 script_cve_id("CVE-2009-1891", "CVE-2009-3094", "CVE-2009-3095", "CVE-2009-3555");
 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("RedHat Security Advisory RHSA-2009:1580");



 script_category(ACT_GATHER_INFO);

 script_copyright("Copyright (c) 2009 E-Soft Inc. http://www.securityspace.com");
 script_family("Red Hat Local Security Checks");
 script_dependencies("gather-package-list.nasl");
 script_mandatory_keys("ssh/login/rhel", "ssh/login/rpms");
 script_tag(name : "solution" , value : tag_solution);
 script_tag(name : "summary" , value : tag_summary);
 script_tag(name:"qod_type", value:"package");
 script_tag(name:"solution_type", value:"VendorFix");
 script_xref(name : "URL" , value : "http://rhn.redhat.com/errata/RHSA-2009-1580.html");
 script_xref(name : "URL" , value : "http://www.redhat.com/security/updates/classification/#moderate");
 script_xref(name : "URL" , value : "http://kbase.redhat.com/faq/docs/DOC-20491");
 exit(0);
}

#
# The script code starts here
#

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

res = "";
report = "";
if ((res = isrpmvuln(pkg:"httpd", rpm:"httpd~2.0.52~41.ent.6", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"httpd-debuginfo", rpm:"httpd-debuginfo~2.0.52~41.ent.6", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"httpd-devel", rpm:"httpd-devel~2.0.52~41.ent.6", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"httpd-manual", rpm:"httpd-manual~2.0.52~41.ent.6", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"httpd-suexec", rpm:"httpd-suexec~2.0.52~41.ent.6", rls:"RHENT_4")) != NULL) {
    report += res;
}
if ((res = isrpmvuln(pkg:"mod_ssl", rpm:"mod_ssl~2.0.52~41.ent.6", rls:"RHENT_4")) != NULL) {
    report += res;
}

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