CVE-2019-12387

Public Exploit

Description

In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an attacker to inject invalid characters such as CRLF.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.66%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory twistedmatrix.com Vendor Advisory twistedmatrix.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://labs.twistedmatrix.com/2019/06/twisted-1921-released.html vendor advisory release notes exploit
https://github.com/twisted/twisted/commit/6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2 third party advisory patch
https://twistedmatrix.com/pipermail/twisted-python/2019-June/032352.html vendor advisory release notes exploit
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00030.html vendor advisory broken link
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00042.html vendor advisory broken link
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2G5RPDQ4BNB336HL6WW5ZJ344MAWNN7N/ vendor advisory
https://usn.ubuntu.com/4308-2/ third party advisory vendor advisory
https://usn.ubuntu.com/4308-1/ third party advisory vendor advisory
https://www.oracle.com/security-alerts/cpuapr2020.html third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2019-12387?
CVE-2019-12387 has been scored as a medium severity vulnerability.
How to fix CVE-2019-12387?
To fix CVE-2019-12387, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-12387 being actively exploited in the wild?
It is possible that CVE-2019-12387 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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