Pingtel Xpressa 1.2.5 through 2.0.1 uses predictable (1) Call-ID, (2) CSeq, and (3) To and From SIP URL values in a Session Identification Protocol (SIP) request, which allows remote attackers to avoid registering with the SIP registrar.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Xpressa | Pingtel | 1.2.5 (including) | 1.2.5 (including) |
| Xpressa | Pingtel | 1.2.7.4 (including) | 1.2.7.4 (including) |
| Xpressa | Pingtel | 1.2.8 (including) | 1.2.8 (including) |
| Xpressa | Pingtel | 2.0 (including) | 2.0 (including) |
| Xpressa | Pingtel | 2.0.1 (including) | 2.0.1 (including) |
References
- http://online.securityfocus.com/archive/1/288383
- http://www.iss.net/security_center/static/9949.php
- http://www.securityfocus.com/bid/5537
- http://www.sys-security.com/archive/advisories/More_Vulnerabilities_with_Pingtel_xpressa_SIP-based_IP_phones.txt
- http://online.securityfocus.com/archive/1/288383
- http://www.iss.net/security_center/static/9949.php
- http://www.securityfocus.com/bid/5537
- http://www.sys-security.com/archive/advisories/More_Vulnerabilities_with_Pingtel_xpressa_SIP-based_IP_phones.txt