Jenkins Script Security Plugin: Protection Mechanism Failure
CVE-2024-34144 is a critical-severity protection mechanism failure vulnerability in Jenkins Script Security Plugin from Jenkins, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Jenkins Script Security Plugin versions: 1335.vf07d9ce377a_e and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 48.4% chance of exploitation within 30 days, which is in the top 1.11% of all scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of Jenkins Script Security Plugin you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on jenkins.io for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Jenkins Project | Jenkins Script Security Plugin | 1335.vf07d9ce377a_e and earlier | Not stated |
| Jenkins | script_security | 1335.vf07d9ce377a_e and earlier | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by CISA (ADP).
Official description
A sandbox bypass vulnerability involving crafted constructor bodies in Jenkins Script Security Plugin 1335.vf07d9ce377a_e and earlier allows attackers with permission to define and run sandboxed scripts, including Pipelines, to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Protection Mechanism Failure
The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
- openwall.com/lists/oss-security/2024/05/02/3Mailing List
Other vulnerabilities in Jenkins Script Security Plugin
- 7.5 High severity
- 7.5 High severity
- 8.0 High severity
- 8.5 High severity
- 8.8 High severity
- 8.8 High severity
Recent Protection Mechanism Failure vulnerabilities
- 7.8 High severity
- 8.8 High severity
- 7.2 High severity
- 7.8 High severity
- 9.1 Critical severity
- 9.8 Critical severity
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