CVE-2017-1000353
Deserialization of Untrusted Data in Jenkins
Description
Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to an unauthenticated remote code execution. An unauthenticated remote code execution vulnerability allowed attackers to transfer a serialized Java `SignedObject` object to the Jenkins CLI, that would be deserialized using a new `ObjectInputStream`, bypassing the existing blacklist-based protection mechanism. We're fixing this issue by adding `SignedObject` to the blacklist. We're also backporting the new HTTP CLI protocol from Jenkins 2.54 to LTS 2.46.2, and deprecating the remoting-based (i.e. Java serialization) CLI protocol, disabling it by default.
How to fix CVE-2017-1000353
To remediate CVE-2017-1000353, upgrade the affected package to a fixed version below.
- —upgrade to 2.57 or later
Is CVE-2017-1000353 being exploited?
Yes — CVE-2017-1000353 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.
Affected packages (1)
- >= 2.50, < 2.57
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H |