Apache HTTP server mod_alias and mod_rewrite buffer overflow

apache-modalias-modrewrite-bo (13400)

High Risk

Description:

Apache HTTP Server is vulnerable to a buffer overflow in the mod_alias and mod_rewrite module. By creating a specially-crafted configuration file containing a regular expression with more than nine capturing parentheses, a local attacker could overflow a buffer and possibly execute arbitrary code on the system.

Platforms Affected:

• Apache, HTTP Server 1.3
• Apache, HTTP Server 1.3.1
• Apache, HTTP Server 1.3.11
• Apache, HTTP Server 1.3.12
• Apache, HTTP Server 1.3.14
• Apache, HTTP Server 1.3.17
• Apache, HTTP Server 1.3.18
• Apache, HTTP Server 1.3.19
• Apache, HTTP Server 1.3.20
• Apache, HTTP Server 1.3.22
• Apache, HTTP Server 1.3.23
• Apache, HTTP Server 1.3.24
• Apache, HTTP Server 1.3.25
• Apache, HTTP Server 1.3.26
• Apache, HTTP Server 1.3.27
• Apache, HTTP Server 1.3.28
• Apache, HTTP Server 1.3.3
• Apache, HTTP Server 1.3.4
• Apache, HTTP Server 1.3.6
• Apache, HTTP Server 1.3.9
• Apache, HTTP Server 2.0
• Apache, HTTP Server 2.0.28
• Apache, HTTP Server 2.0.32
• Apache, HTTP Server 2.0.35
• Apache, HTTP Server 2.0.36
• Apache, HTTP Server 2.0.37
• Apache, HTTP Server 2.0.38
• Apache, HTTP Server 2.0.39
• Apache, HTTP Server 2.0.40
• Apache, HTTP Server 2.0.41
• Apache, HTTP Server 2.0.42
• Apache, HTTP Server 2.0.43
• Apache, HTTP Server 2.0.44
• Apache, HTTP Server 2.0.45
• Apache, HTTP Server 2.0.46
• Apache, HTTP Server 2.0.47
• Conectiva, Linux 7.0
• Conectiva, Linux 8.0
• Conectiva, Linux 9.0
• Gentoo, Linux
• HP, HP-UX 11.00
• HP, HP-UX 11.11
• HP, HP-UX 11.20
• HP, HP-UX 11.22
• MandrakeSoft, Mandrake Linux 9.0
• MandrakeSoft, Mandrake Linux 9.1 PPC
• MandrakeSoft, Mandrake Linux 9.1
• MandrakeSoft, Mandrake Linux 9.2
• MandrakeSoft, Mandrake Linux Corporate Server 2.1
• MandrakeSoft, Mandrake Linux Corporate Server 2.1 X86_64
• MandrakeSoft, Mandrake Multi Network Firewall 8.2
• OpenPKG, OpenPKG 1.2
• OpenPKG, OpenPKG 1.3
• OpenPKG, OpenPKG CURRENT
• RedHat, Enterprise Linux 2.1 ES
• RedHat, Enterprise Linux 2.1 AS
• RedHat, Enterprise Linux 2.1 WS
• RedHat, Enterprise Linux 2.1 AW
• RedHat, Enterprise Linux 3 ES
• RedHat, Enterprise Linux 3 AS
• RedHat, Enterprise Linux 3 WS
• RedHat, Linux 7.1
• RedHat, Linux 7.2
• RedHat, Linux 7.3
• RedHat, Linux 8.0
• RedHat, Linux 9.0
• RedHat, Linux Advanced Workstation 2.1 Itanium
• RedHat, Stronghold
• SCO, Caldera OpenUnix 8.0.0
• SCO, Caldera UnixWare 7.1.1
• SCO, Caldera UnixWare 7.1.3
• Slackware, Slackware Linux 8.1
• Slackware, Slackware Linux 9.0
• Slackware, Slackware Linux 9.1
• Slackware, Slackware Linux current
• Sun, Solaris 8 SPARC
• Sun, Solaris 8 x86
• Sun, Solaris 9 x86
• Sun, Solaris 9 SPARC
• Trustix, Secure Linux 1.2
• Trustix, Secure Linux 1.5
• Trustix, Secure Linux 2.0
• Turbolinux, Turbolinux 7 Server
• Turbolinux, Turbolinux 7 Workstation
• Turbolinux, Turbolinux 8 Server
• Turbolinux, Turbolinux 8 Workstation
• Turbolinux, Turbolinux Appliance Server 1.0
• Turbolinux, Turbolinux Advanced Server 6
• Turbolinux, Turbolinux Appliance Server 1.0 Hosting Ed
• Turbolinux, Turbolinux Appliance Server 1.0 Workgroup Ed
• Turbolinux, Turbolinux Server 6.1
• Turbolinux, Turbolinux Server 6.5
• Turbolinux, Turbolinux Workstation 6.0

Remedy:

For Apache HTTP Server 1.3.28 and earlier:
Upgrade to the latest version of Apache HTTP Server (1.3.29 or later), available from the Apache Web site. See References.

For Apache HTTP Server 2.0.47 and earlier:
Upgrade to the latest version of Apache HTTP Server (2.0.48 or later), available from the Apache Web site. See References.

For OpenPKG:
Upgrade to the latest apache package, as listed below. Refer to OpenPKG Security Advisory OpenPKG-SA-2003.046 for more information. See References.

OpenPKG CURRENT: 1.3.29-20031028 or later
OpenPKG 1.2: 1.3.27-1.2.3 or later
OpenPKG 1.3: 1.3.28-1.3.1 or later

For Gentoo Linux:
Upgrade to the latest version of net-www/apache (2.0.48 or later), as listed in Gentoo Linux Security Announcement 200310-04. See References.

For Mandrake Linux:
Upgrade to the latest apache package, as listed below. Refer to MandrakeSoft Security Advisory MDKSA-2003:103 : apache for more information. See References.

Mandrake Linux 9.0 and Corporate Server 2.1: 1.3.26-6.3.90mdk or later
Mandrake Linux 9.1: 1.3.27-8.1.91mdk or later
Mandrake Linux 9.2: 1.3.28-3.1.92mdk or later
Mandrake Multi Network Firewall 8.2: 1.3.23-4.3.M82mdk or later

For Slackware Linux:
Upgrade to the latest apache package, as listed below. Refer to slackware-security Mailing List, Tue, 4 Nov 2003 16:48:11 -0800 (PST) for more information. See References.

Slackware Linux 8.1, 9.0, 9.1, and -current: 1.3.29-i386-1 or later

For Conectiva Linux:
Upgrade to the latest apache package, as listed below. Refer to Conectiva Linux Security Announcement CLSA-2003:775 for more information. See References.

Conectiva Linux 7.0: 1.3.28-1U70_2cl or later
Conectiva Linux 8: 1.3.28-1U80_2cl or later
Conectiva Linux 9: 2.0.45-2879OU90_5cl or later

For Trustix Secure Linux 1.2, 1.5, and 2.0:
Upgrade to the latest apache package (1.3.29-1tr or 2.0.48-1tr or later), as listed in Trustix Secure Linux Security Advisory #2003-0041. See References.

For Red Hat Linux:
Upgrade to the latest apache package, as listed below. Refer to RHSA-2003:405-04 for more information. See References.

Red Hat 7.1: 1.3.27-3.7.1 or later
Red Hat 7.2: 1.3.27-3.7.2 or later
Red Hat 7.3: 1.3.27-4 or later

For Red Hat Linux:
Upgrade to the latest httpd package, as listed below. Refer to RHSA-2003:320-09 for more information. See References.

Red Hat 8.0: 2.0.40-11.9 or later
Red Hat 9: 2.0.40-21.9

For Red Hat Linux containing the apache package:
Upgrade to the latest apache package, as listed below. Refer to RHSA-2003:360-08 for more information. See References.

Red Hat Enterprise Linux AS (v. 2.1), ES (v. 2.1), WS (v. 2.1), and Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor: 3.27-6 or later

For Red Hat Linux Stronghold:
Refer to RHSA-2005:816-10 for patch, upgrade, or suggested workaround information. See References.

For SGI IRIX:
Apply the 10039 patch for this vulnerability, as listed in SGI Security Advisory 20031203-01-U. See References.

For HP-UX 11.00, 11.11, 11.20, and 11.22 :
Apply the appropriate patch for your system, as listed in Hewlett-Packard Company Security Bulletin HPSBUX01098. See References.

For Turbolinux:
Upgrade to the latest apache package (1.3.27-22 or later), as listed in Turbolinux Security Advisory TLSA-2004-10. See References.

For Caldera UnixWare 7.1.3, OpenUnix 8.0.0, and UnixWare 7.1.1:
Update to the latest fixed binaries, as listed in SCO Security Advisory CSSA-2004-6. See References.

For Sun Solaris:
Apply the appropriate patch for your system, as listed below. Refer to Sun Alert ID: 57496 for more information. See References.

SPARC Platform
Solaris 8 with patch 116973-01 or later
Solaris 9 with patch 113146-03 or later

x86 Platform
Solaris 8 with patch 116974-01 or later
Solaris 9 with patch 114145-02 or later

For other distributions:
Contact your vendor for upgrade or patch information.

Consequences:

Gain Privileges

References:

• Apache Web site, Apache HTTP Server 1.3.29 Released at http://www.apache.org/dist/httpd/Announcement.html.
• Apache-CVS Mailing List, 2003-10-24 16:11:41, cvs commit: apache-1.3/src/modules/standard mod_alias.c mod_rewrite.c mod_rewrite.h at http://marc.theaimsgroup.com/?l=apache-cvs&m=106701190026083.
• CIAC Information Bulletin O-015, Apache HTTP Server 2.0.48 Release Fixes Security Vulnerabilities at http://www.ciac.org/ciac/bulletins/o-015.shtml.
• CIAC Information Bulletin O-016, Apache HTTP Server 1.3.29 Release Fixes Security Vulnerability at http://www.ciac.org/ciac/bulletins/o-016.shtml.
• CIAC INFORMATION BULLETIN P-273, Updated Solaris 8 Patches for Apache Security Vulnerabilities at http://www.ciac.org/ciac/bulletins/p-273.shtml.
• Conectiva Linux Security Announcement CLSA-2003:775, apache at http://distro.conectiva.com/atualizacoes/index.php?id=a&anuncio=000775.
• Gentoo Linux Security Announcement 200310-04, net-www/apache at http://www.linuxsecurity.com/content/view/105489/104/. (From LinuxSecurity archive)
• SCO Security Advisory CSSA-2004-6, apache multiple vulnerabilities, upgraded to apache-1.3.29 at http://www.net-security.org/advisory.php?id=3303.
• slackware-security Mailing List, Tue, 4 Nov 2003 16:48:11 -0800 (PST), [slackware-security] apache security update (SSA:2003-308-01) at http://www.slackware.com/security/viewer.php?l=slackware-security&y=2003&m=slackware-security.559833.
• Sun Alert ID: 57496, Security Vulnerability in the Apache Web Server "mod_alias" and "mod_rewrite" Modules at http://sunsolve.sun.com/search/document.do?assetkey=1-26-57496-1&searchclause=.
• Sun Alert ID: 57496, Security Vulnerability in the Apache Web Server "mod_alias" and "mod_rewrite" Modules at http://sunsolve.sun.com/search/document.do?assetkey=1-26-57496-1&searchclause=.
• Trustix Secure Linux Security Advisory #2003-0041, apache at http://www.linuxsecurity.com/content/view/105525/109/. (From LinuxSecurity archive)
• BID-8911: Apache Web Server Multiple Module Local Buffer Overflow Vulnerability
• BID-9504: Multiple Apple Mac OS X Operating System Component Vulnerabilities
• CVE-2003-0542: Multiple stack-based buffer overflows in (1) mod_alias and (2) mod_rewrite for Apache before 1.3.29 allow attackers to create configuration files to cause a denial of service (crash) or execute arbitrary code via a regular expression with more than 9 captures.
• GLSA-200310-03: Apache: multiple buffer overflows
• GLSA-200310-04: Apache: buffer overflows and a possible information disclosure
• MDKSA-2003:103: Updated apache packages fix vulnerabilities
• OpenPKG-SA-2003.046: Apache mod_alias
• RHSA-2003-320: Updated httpd packages fix Apache security vulnerabilities
• RHSA-2003-360: apache security update
• RHSA-2003-405: Updated apache packages fix minor security vulnerability
• RHSA-2004-015: httpd security update
• RHSA-2005-816: apache
• SA10096: Apache Vulnerabilities in Various Modules
• SA10264: HP-UX Apache Various Module Vulnerabilities

Reported:

Oct 24, 2003

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