Jenkins Script Security Plugin: Authentication Bypass by Spoofing
CVE-2024-34145 is a high-severity authentication bypass by spoofing vulnerability in Jenkins Script Security Plugin from Jenkins, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, 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 1% chance of exploitation within 30 days, higher than 63% of scored CVEs.
High severity with no evidence of exploitation so far.
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.
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
- LowA basic user account is enough.
- 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:L/UI:N/S:U/C:H/I:H/A:H. Scored by CISA (ADP).
Official description
A sandbox bypass vulnerability involving sandbox-defined classes that shadow specific non-sandbox-defined classes 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: Authentication Bypass by Spoofing
This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
More Authentication Bypass by Spoofing vulnerabilities (CWE-290)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, 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 Authentication Bypass by Spoofing vulnerabilities
- 8.1 High severity
- 9.1 Critical severity
- 8.4 High severity
- 9.8 Critical severity
- 8.8 High severity
- 8.3 High severity
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