In words.protocols.jabber.xmlstream in Twisted through 19.2.1, XMPP support did not verify certificates when used with TLS, allowing an attacker to MITM connections.
Weakness
The product does not validate, or incorrectly validates, a certificate.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Twisted | Twisted | * | 19.2.1 (including) |
| Twisted | Ubuntu | bionic | * |
| Twisted | Ubuntu | cosmic | * |
| Twisted | Ubuntu | devel | * |
| Twisted | Ubuntu | disco | * |
| Twisted | Ubuntu | eoan | * |
| Twisted | Ubuntu | esm-infra-legacy/trusty | * |
| Twisted | Ubuntu | esm-infra/bionic | * |
| Twisted | Ubuntu | esm-infra/xenial | * |
| Twisted | Ubuntu | trusty | * |
| Twisted | Ubuntu | trusty/esm | * |
| Twisted | Ubuntu | xenial | * |
| Twisted-py3 | Ubuntu | trusty | * |
Potential Mitigations
Related Attack Patterns
References
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00013.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00028.html
- https://github.com/twisted/twisted/pull/1147
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ/
- https://twistedmatrix.com/trac/ticket/9561
- https://usn.ubuntu.com/4308-1/
- https://usn.ubuntu.com/4308-2/
- https://www.oracle.com/security-alerts/cpuapr2020.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00013.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00028.html
- https://github.com/twisted/twisted/pull/1147
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ/
- https://twistedmatrix.com/trac/ticket/9561
- https://usn.ubuntu.com/4308-1/
- https://usn.ubuntu.com/4308-2/
- https://www.oracle.com/security-alerts/cpuapr2020.html