Asterisk MGCP buffer overflow
| asterisk-mgcp-bo (28542) |  High Risk |
Description:
Asterisk is vulnerable to a stack-based buffer overflow in the MGCP implementation. By sending a malformed AUEP (audit endpoint) response message, a remote attacker could overflow a buffer and execute arbitrary code on the system.
*CVSS:
| Base Score: | 7 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 5.2 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of Asterisk (1.2.11 or later), available from the Asterisk Web site. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 200610-15 for patch, upgrade, or suggested workaround information. See References.
References:
- Asterisk Web site: Asterisk | The Open Source PBX.
- BugTraq Mailing List, Fri Aug 25 2006 - 04:14:13 CDT: Multiple Vulnerabilities in Asterisk 1.2.10 (Fixed in 1.2.11).
- MU-200608-01: Multiple Vulnerabilities in Asterisk 1.2.10 .
- BID-19683: Asterisk Multiple Remote Vulnerabilities
- CVE-2006-4345: Stack-based buffer overflow in channels/chan_mgcp.c in MGCP in Asterisk 1.0 through 1.2.10 allows remote attackers to execute arbitrary code via a crafted audit endpoint (AUEP) response.
- GLSA-200610-15: Asterisk: Multiple vulnerabilities
- SA21600: Asterisk MGCP AUEP Response Handling Buffer Overflow
- SECTRACK ID: 1016742: Asterisk Stack Overflow in MGCP Implementation Lets Remote Users Execute Arbitrary Code
- VUPEN/ADV-2006-3372: Asterisk MGCP AUEP Message Buffer Overflow and Record Application Vulnerabilities
Platforms Affected:
- Digium Asterisk Open Source 1.0.0 - 1.2.10
- Gentoo Linux
Reported:
Aug 23, 2006
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For corrections or additions please email xforce@iss.net
* 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.