OpenSSL CMS_verify() function security bypass
| openssl-cmsverify-security-bypass (49432) |  Medium Risk |
Description:
OpenSSL could allow a remote attacker to bypass security restrictions, caused by an error in the CMS_verify() function when handling error conditions. An attacker could exploit this vulnerability using malformed signed attributes containing invalid signed attributes to bypass content digest checks.
*CVSS:
| Base Score: | 4.3 |
| Access Vector: | Network |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | Partial |
| Availability Impact: | None |
| Temporal Score: | 3.2 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Bypass Security
Remedy:
Upgrade to the latest version of OpenSSL (0.9.8k or later), available from the OpenSSL Web site. See References.
For other distributions:
Apply the appropriate update for your system. See References.
References:
- Apple Web site: About Security Update 2009-005.
- HPSBOV02540 SSRT090249: HP SSL for OpenVMS, Remote Unauthorized Data Injection, Denial of Service(Dos).
- OpenSSL Security Advisory [25-Mar-2009]: Three moderate severity security flaws have been fixed in OpenSSL 0.9.8k.
- OpenSSL Web site: OpenSSL: The Open Source toolkit for SSL/TLS.
- PHP Web site: PHP 5.2.9-2 (Windows) released.
- SA50: Multiple SSL/TLS vulnerabilities in Reporter.
- SourceForge.net: Files: SSVNC, File Release Notes and Changelog, Release Name: 1.0.23.
- SourceForge.net: Files: SysAdmin Tools from ITeF!x, File Release Notes and Changelog, Release Name: 3.1.0.
- SourceForge.net: Files: SysAdmin Tools from ITeF!x, File Release Notes and Changelog, Release Name: 2.1.1.
- VooDoo cIRCle security advisory 20090326-01: An OpenSource VooDoo cIRCle - security advisory 20090326-01.
- ASA-2009-230: HP-UX Running OpenSSL Remote Denial of Service (DoS) Bypass Security Restrictions (HPSBUX02435)
- BID-34256: OpenSSL Multiple Vulnerabilities
- CVE-2009-0591: The CMS_verify function in OpenSSL 0.9.8h through 0.9.8j, when CMS is enabled, does not properly handle errors associated with malformed signed attributes, which allows remote attackers to repudiate a signature that originally appeared to be valid but was actually invalid.
- OSVDB ID: 52865: OpenSSL CMS_verify() Function Malformed Signed Attribute Content Digest Validity Spoofing
- OSVDB ID: 62880: SSH Tectia Audit Player CMS_verify() Function Malformed Signed Attribute Content Digest Validity Spoofing
- SA34411: OpenSSL Multiple Vulnerabilities
- SA34460: VooDoo cIRCle OpenSSL Multiple Vulnerabilities
- SA34666: PHP for Windows OpenSSL Multiple Vulnerabilities
- SA35075: cwRsync Multiple OpenSSL Vulnerabilities
- SA35086: copSSH Multiple OpenSSL Vulnerabilities
- SA36701: Apple Mac OS X Security Update Fixes Multiple Vulnerabilities
- SA38858: SSH Tectia Audit Player Multiple Vulnerabilities
- SA40235: HP SSL for OpenVMS Multiple Vulnerabilities
- SA42724: Blue Coat Reporter OpenSSL Multiple Vulnerabilities
- SA42733: Blue Coat Reporter OpenSSL Multiple Vulnerabilities
- SECTRACK ID: 1021907: OpenSSL CMS_verify() Error Handling Flaw Lets Users Bypass Security Checks
- SUSE-SR:2009:010: SUSE Security Summary Report
- VUPEN/ADV-2009-0850: OpenSSL Multiple Denial of Service and Security Bypass Vulnerabilities
- VUPEN/ADV-2009-1020: PHP Security Update Fixes OpenSSL Security Bypass and DoS Issues
- VUPEN/ADV-2009-1175: VooDoo cIRCle Security Update Fixes OpenSSL Security Bypass Issues
- VUPEN/ADV-2009-1548: HP-UX Update Fixes OpenSSL Security Bypass and DoS Vulnerabilities
Platforms Affected:
- Apple Mac OS X 10.5
- Apple Mac OS X Server 10.5.8
- BlueCoat Reporter 8.3.7.1
- BlueCoat Reporter 9.1.5.1
- BlueCoat Reporter 9.2.3.1
- HP SSL 1.3 OpenVMS Alpha
- ITeF!x copSSH 2.1.0
- ITeF!x cwRsync 3.0.6
- OpenSSL OpenSSL 0.9.8h
- OpenSSL OpenSSL 0.9.8i
- OpenSSL OpenSSL 0.9.8j
- PHP PHP 5.2.9
- SSVNC SSVNC 1.0.18
- SSVNC SSVNC 1.0.19
- SSVNC SSVNC 1.0.20
- SSVNC SSVNC 1.0.21
- SSVNC SSVNC 1.0.22
- VooDoo cIRCLe 1.0
- VooDoo cIRCLe 1.0.1
- VooDoo cIRCLe 1.0.10
- VooDoo cIRCLe 1.0.11
- VooDoo cIRCLe 1.0.12
- VooDoo cIRCLe 1.0.13
- VooDoo cIRCLe 1.0.14
- VooDoo cIRCLe 1.0.15
- VooDoo cIRCLe 1.0.16
- VooDoo cIRCLe 1.0.17
- VooDoo cIRCLe 1.0.18
- VooDoo cIRCLe 1.0.2
- VooDoo cIRCLe 1.0.20
- VooDoo cIRCLe 1.0.3
- VooDoo cIRCLe 1.0.32
- VooDoo cIRCLe 1.0.33
- VooDoo cIRCLe 1.1
- VooDoo cIRCLe 1.1.34
- VooDoo cIRCLe 1.1.35
Reported:
Mar 25, 2009
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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.