High severity · published Jun 16, 2019
CVE-2019-12855
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
7.4
CVSS
1.8%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TW
Twisted · Twisted
through 19.2.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-12855
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-12855
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00013.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00028.html
Patch
https://github.com/twisted/twisted/pull/1147
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ/
Vendor Advisory
https://twistedmatrix.com/trac/ticket/9561
usn.ubuntu.com
https://usn.ubuntu.com/4308-1/
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