Clam AntiVirus (ClamAV) and Kolab Server RAR file security bypass
| clamav-rar-security-bypass (34823) |  Medium Risk |
Description:
Clam AntiVirus (ClamAV) and Kolab Server could allow a remote attacker to bypass security restrictions, caused by a vulnerability in the parsing engine. By sending a specially-crafted RAR file to a vulnerable system, a remote attacker could bypass scanning detection and possibly execute arbitrary code on the system, once the file is processed.
*CVSS:
| Base Score: | 2.8 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | None |
| Integrity Impact: | Partial |
| Availability Impact: | None |
| Temporal Score: | 2.1 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Bypass Security
Remedy:
For Clam AntiVirus:
Upgrade to the latest version of Clam AntiVirus (0.90.3 or later), available from the Clam AntiVirus Web site. See References.
For Kolab Server:
Upgrade to the latest version of Kolab Server (2.1.0 or later) and Clam AntiVirus (0.90.3 or later), available from the Clam AntiVirus and Kolab Server Web site. See References.
For Gentoo Linux (clamav):
Refer to GLSA 200706-05 for patch, upgrade, or suggested workaround information. See References.
For Debian/GNU Linux (clamav):
Refer to DSA-1320-1 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- Clam AntiVirus Web site: Clam AntiVirus.
- ClamAV Bugzilla Bug 511: Vuln #2 | Class: AV Evasion | Format:RAR PoC Attached.
- Clamav-announce Mailing List, 2007-05-30 18:49 -400: announcing ClamAV 0.90.3.
- Kolab Security Issue 15 20070601: denial of service, insecure temporary files.
- Kolab Server Web site: Kolab Groupware:: Home.
- CVE-2007-3122: The parsing engine in ClamAV before 0.90.3 and 0.91 before 0.91rc1 allows remote attackers to bypass scanning via a RAR file with a header flag value of 10, which can be processed by WinRAR.
- DSA-1320: clamav -- several vulnerabilities
- GLSA-200706-05: ClamAV: Multiple Denials of Service
- MDKSA-2007:115: Updated clamav packages fix vulnerabilities
- OSVDB ID: 45392: ClamAV Parsing Engine Crafted RAR File Scanning Bypass
- SA25525: Kolab Server ClamAV Denial of Service
Platforms Affected:
- ClamAV ClamAV 0.90.2 and prior
- Debian Debian Linux 3.1
- Debian Debian Linux 4.0
- Gentoo Linux
- Kolab Kolab Server 2.0.4
- Kolab Kolab Server 2.1.0
- MandrakeSoft Mandrake Linux 2007
- MandrakeSoft Mandrake Linux 2007 X86_64
- MandrakeSoft Mandrake Linux 2007.1
- MandrakeSoft Mandrake Linux 2007.1 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 3.0
- MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 4.0
Reported:
May 30, 2007
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 the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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.