Asterisk is an open source private branch exchange and telephony toolkit

Why it is Yellow

• CVSS 7.0 high
• Remotely exploitable without logging in

References

• https://github.com/asterisk/asterisk/commit/046a8b0b50623d80926c1adc2eca1c9c17e258ed
• https://github.com/asterisk/asterisk/commit/0a86e45e8cde7630276f8363de45f71d1635d2f4
• https://github.com/asterisk/asterisk/commit/88c65757b56c716b5a175f35941be22e038b256f
• https://github.com/asterisk/asterisk/commit/8bf7746d01221d6d2bcfcd46ba7a1cff066a1a8b
• https://github.com/asterisk/asterisk/commit/8cb6dfd41debb2259ec3a33ccfa78f1d902e4c22
• https://github.com/asterisk/asterisk/commit/a04bee3992c28e1681457370e46f30494b7c6619
• https://github.com/asterisk/asterisk/commit/ff21d90e61d199db9b963c671d125a1e917d41ac
• https://github.com/asterisk/asterisk/releases/tag/20.20.1
• https://github.com/asterisk/asterisk/releases/tag/21.12.3
• https://github.com/asterisk/asterisk/releases/tag/22.10.1

Original description

Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, the `PostgreSQL` and `TDS/MSSQL` Channel Event Log backends `cel_pgsql` and `cel_tds` may permit arbitrary SQL execution when untrusted data is set in the CEL `eventtype` column by the `CELGenUserEvent` dialplan application. The `cel_pgsql` or `cel_tds` backend must be loaded and configured, and the administrator must call `CELGenUserEvent` in the dialplan without ensuring that only valid data is passed to the application. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.