Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2019-12387

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.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.1, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts limited data confidentiality, limited integrity, for affected systems. Impacting 5 products from twisted, from fedoraproject, from canonical and 2 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2019-06-10T12:29:00.287

Last Modified

2024-11-25T18:12:24.673

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.1 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-74

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	twisted	twisted	< 19.2.1	Yes
Operating System	fedoraproject	fedora	29	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	canonical	ubuntu_linux	19.10	Yes
Application	oracle	zfs_storage_appliance_kit	8.8	Yes
Operating System	oracle	solaris	11	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00030.html Broken Link ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00042.html Broken Link ([email protected])
https://github.com/twisted/twisted/commit/6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2 Patch, Third Party Advisory ([email protected])
https://labs.twistedmatrix.com/2019/06/twisted-1921-released.html Exploit, Release Notes, Vendor Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2G5RPDQ4BNB336HL6WW5ZJ344MAWNN7N/ ([email protected])
https://twistedmatrix.com/pipermail/twisted-python/2019-June/032352.html Exploit, Release Notes, Vendor Advisory ([email protected])
https://usn.ubuntu.com/4308-1/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/4308-2/ Third Party Advisory ([email protected])
https://www.oracle.com/security-alerts/cpuapr2020.html Patch, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00030.html Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00042.html Broken Link (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/twisted/twisted/commit/6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://labs.twistedmatrix.com/2019/06/twisted-1921-released.html Exploit, Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2G5RPDQ4BNB336HL6WW5ZJ344MAWNN7N/ (af854a3a-2127-422b-91ae-364da2661108)
https://twistedmatrix.com/pipermail/twisted-python/2019-June/032352.html Exploit, Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4308-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4308-2/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/security-alerts/cpuapr2020.html Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For twisted's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.