Apache HTTP Server mod_proxy module denial of service
| apache-modproxy-module-dos (42987) |  Low Risk |
Description:
Apache HTTP Server is vulnerable to a denial of service, caused by an error in the mod_proxy module ap_proxy_http_process_response function. A remote attacker could exploit this vulnerability via forwarded "Expect: 100-continue" requests from the server to the client to cause the consumption of memory resources.
Note: This vulnerability affects multiple vendor HTTP server components that utilize the Apache mod_status module. See References.IBM3
*CVSS:
| Base Score: | 5 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 3.7 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Apply the patch for this vulnerability, available from the Apache-SVN Repository. See References.
For WebSphere Application Server 6.0.2:
Apply the latest Fix Pack (6.0.2.31 or later) or APAR PK67579. See References.
For WebSphere Application Server 6.1.0:
Apply the latest Fix Pack (6.0.2.19 or later) or APAR PK67579. See References.
——OR——
As a workaround, ensure the directive starting with the following text is commented out in the HIS configuration: LoadModule proxy_module
For other distributions:
Apply the appropriate update for your system. See References.
References:
- Apache Web site: Welcome! - The Apache HTTP Server Project.
- Apache-SVN Repository: Diff of /httpd/httpd/trunk/CHANGES.
- Apache-SVN Repository: Diff of /httpd/httpd/trunk/modules/proxy/mod_proxy_http.c.
- Apple Web site: About Security Update 2008-007 .
- HPSBUX02365 SSRT080118 rev.1: HP-UX Running Apache, Remote Cross Site Scripting (XSS) or Denial of Service (DoS).
- HPSBUX02401 SSRT090005 rev.1: HP-UX Running Apache Web Server Suite, Remote Denial of Service (DoS), Cross-site Scripting (XSS), Execution of Arbitrary Code, Cross-Site Request Forgery (CSRF).
- IBM APAR SE39219: HTTPSVR - Patch Apache Vulnerability CVE 2008 2364.
- IBM Support & downloads: Fix list for IBM WebSphere Application Server version 6.1.
- IBM Support & downloads: Fix list for WebSphere Application Server Version 6.0.2.
- IBM Support & downloads: Fix list for IBM HTTP Server Version 6.1.
- Sun Alert ID: 247666: Security Vulnerabilities in the Apache 2.0 "mod_proxy_http" and "mod_proxy_ftp" Modules may Lead to Denial of Service (DoS) or Cross Site Scripting (XSS).
- ASA-2008-468: Red Hat Application Stack v2.2 security and enhancement update (RHSA-2008-0966)
- ASA-2008-472: httpd security and bug fix update (RHSA-2008-0967)
- BID-29653: Apache 'mod_proxy_http' Interim Response Denial of Service Vulnerability
- BID-31681: RETIRED: Apple Mac OS X 2008-007 Multiple Security Vulnerabilities
- CVE-2008-2364: The ap_proxy_http_process_response function in mod_proxy_http.c in the mod_proxy module in the Apache HTTP Server 2.0.63 and 2.2.8 does not limit the number of forwarded interim responses, which allows remote HTTP servers to cause a denial of service (memory consumption) via a large number of interim responses.
- GLSA-200807-06: Apache: Denial of Service
- MDVSA-2008:195: apache
- MDVSA-2008:237: apache2
- RHSA-2008-0966: Moderate: Red Hat Application Stack v2.2 security and enhancement update
- RHSA-2008-0967: Moderate: httpd security and bug fix update
- SA30621: Apache mod_proxy Interim Responses Denial of Service
- SA31904: IBM HTTP Server mod_proxy Interim Responses Denial of Service
- SA32222: Apple Mac OS X Security Update Fixes Multiple Vulnerabilities
- SA33156: Sun Solaris Apache "mod_proxy_http" and "mod_proxy_ftp" Vulnerabilities
- SA37104: IBM OS/400 HTTP Server mod_proxy Denial of Service
- SECTRACK ID: 1020267: Apache mod_proxy Interim Response Process Bug Lets Remote Users Deny Service
- SUSE-SR:2009:006: SUSE Security Summary Report
- SUSE-SR:2009:007: SUSE Security Summary Report
Platforms Affected:
- Apache HTTP Server 2.0.63
- Apache HTTP Server 2.2.8
- Apple Mac OS X 10.5.5
- Apple Mac OS X Server 10.5.5
- Canonical Ubuntu 6.06 LTS
- Canonical Ubuntu 7.10
- Canonical Ubuntu 8.04 LTS
- Gentoo Linux
- HP HP-UX B.11.11
- HP HP-UX B.11.23
- HP HP-UX B.11.31
- IBM OS 400 5.1
- IBM OS 400 5.2
- IBM OS 400 5.3
- IBM OS 400 5.3.5
- IBM WebSphere Application Server 6.0.2
- IBM WebSphere Application Server 6.1
- MandrakeSoft Mandrake Linux 2007.1 X86_64
- MandrakeSoft Mandrake Linux 2007.1
- MandrakeSoft Mandrake Linux 2008.0
- MandrakeSoft Mandrake Linux 2008.0 X86_64
- MandrakeSoft Mandrake Linux 2008.1 X86_64
- MandrakeSoft Mandrake Linux 2008.1
- MandrakeSoft Mandrake Linux Corporate Server 3.0
- MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 4.0
- MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
- MandrakeSoft Mandrake Multi Network Firewall 2.0
- RedHat Enterprise Linux 3 Desktop
- RedHat Enterprise Linux 3 AS
- RedHat Enterprise Linux 3 ES
- RedHat Enterprise Linux 3 WS
- RedHat Enterprise Linux 4 AS
- RedHat Enterprise Linux 4 ES
- RedHat Enterprise Linux 4 WS
- RedHat Enterprise Linux 4 Desktop
- RedHat Enterprise Linux 5 Client
- RedHat Enterprise Linux 5 Client Workstation
- RedHat Enterprise Linux 5
- RedHat RHEL Application Stack 2
- Sun Solaris 10 SPARC
- Sun Solaris 10 x86
- Turbolinux Turbolinux 10 Server
- Turbolinux Turbolinux 10 Server x64 Ed
- Turbolinux Turbolinux 11 Server
- Turbolinux Turbolinux 11 Server x64 Ed
- Turbolinux Turbolinux FUJI
- Turbolinux Turbolinux Multimedia
- Turbolinux Turbolinux Personal
- Turbolinux Turbolinux Appliance Server 2.0
Reported:
Jun 10, 2008
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.