CVE-2021-21689
published 2021-11-04CVE-2021-21689: FilePath#unzip and FilePath#untar were not subject to any agent-to-controller access control in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier.
PriorityP352critical9.1CVSS 3.1
AVNACLPRNUINSUCHIHAN
EPSS
1.42%
69.4th percentile
FilePath#unzip and FilePath#untar were not subject to any agent-to-controller access control in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| jenkins | jenkins | < 2.303.3 | 2.303.3 |
| jenkins | jenkins | < 2.319 | 2.319 |
| jenkins | jenkins_core | — | — |
| jenkins | jenkins_lts | — | — |
| jenkins | jenkins_weekly | — | — |
| jenkins | make_sure_to_read_the_plugin | — | — |
| jenkins | remoting_security_workaround_plugin | — | — |
| jenkins | shared_groovy_libraries_plugin | — | — |
| jenkins | subversion_plugin | — | — |
| jenkins_project | jenkins | unspecified – 2.318 | — |
CVSS provenance
nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
nvdv2.06.4MEDIUMAV:N/AC:L/Au:N/C:P/I:P/A:N
ghsa9.1CRITICAL
osv9.1CRITICAL
vendor_redhat9.1CRITICAL
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OSV
Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
osv·2022-05-24·CVSS 9.1
CVE-2021-21689 [CRITICAL] Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
The agent-to-controller security subsystem limits which files on the Jenkins controller can be accessed by agent processes.
Multiple vulnerabilities in the file path filtering implementation of Jenkins 2.318 and earlier, LTS 2.303.2 and earlier allow agent processes to read and write arbitrary files on the Jenkins controller file system, and obtain some information about Jenkins controller file systems.
SECURITY-2485 / CVE-2021-21689: `FilePath#unzip` and `FilePath#untar` were not subject to any access control.
We expect that most of these vulnerabilities have been present since [SECURITY-144 was addressed in the 2014-10-30 security advisory](https://www.jenkins.io/security/advisory
GHSA
Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
ghsa·2022-05-24·CVSS 9.1
CVE-2021-21689 [CRITICAL] CWE-862 Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
The agent-to-controller security subsystem limits which files on the Jenkins controller can be accessed by agent processes.
Multiple vulnerabilities in the file path filtering implementation of Jenkins 2.318 and earlier, LTS 2.303.2 and earlier allow agent processes to read and write arbitrary files on the Jenkins controller file system, and obtain some information about Jenkins controller file systems.
SECURITY-2485 / CVE-2021-21689: `FilePath#unzip` and `FilePath#untar` were not subject to any access control.
We expect that most of these vulnerabilities have been present since [SECURITY-144 was addressed in the 2014-10-30 security advisory](https://www.jenkins.io/security/advisory
GHSA
Denial of Service in Onionshare
ghsa·2022-01-21
CVE-2022-21689 [HIGH] CWE-400 Denial of Service in Onionshare
Denial of Service in Onionshare
Between September 26, 2021 and October 8, 2021, [Radically Open Security](https://www.radicallyopensecurity.com/) conducted a penetration test of OnionShare 2.4, funded by the Open Technology Fund's [Red Team lab](https://www.opentech.fund/labs/red-team-lab/).
- Vulnerability ID: OTF-012
- Vulnerability type: Denial of Service
- Threat level: Moderate
## Description:
The receive mode limits concurrent uploads to 100 per second and blocks other uploads in the same second, which can be triggered by a simple script.
## Technical description:
The following script uses GNU parallel and curl with around 6000 requests in parallel to send 10000 requests. A change in the `ulimit -n` configuration is required for it to work. This is sufficient to block file uplo
Red Hat
jenkins: FilePath#unzip and FilePath#untar were not subject to any access control
vendor_redhat·2021-11-04·CVSS 9.1
CVE-2021-21689 [CRITICAL] CWE-276 jenkins: FilePath#unzip and FilePath#untar were not subject to any access control
jenkins: FilePath#unzip and FilePath#untar were not subject to any access control
FilePath#unzip and FilePath#untar were not subject to any agent-to-controller access control in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier.
An incorrect access control vulnerability was found in Jenkins. The FilePath#unzip and FilePath#untar were not subjected to any access control. An attacker with access to FilePath#unzip or FilePath#untar operations is able to read and write arbitrary files on the Jenkins controller file system.
Mitigation: Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.
Package: jenkins (Red Hat Fuse 7) - Not affected
Jenkins
Jenkins Security Advisory 2021-11-04
vendor_jenkins·2021-11-04·CVSS 9.1
CVE-2021-21685 [CRITICAL] Jenkins Security Advisory 2021-11-04
Title: Jenkins Security Advisory 2021-11-04
Jenkins Security Advisory 2021-11-04
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This advisory announces vulnerabilities in the following Jenkins deliverables:
Jenkins (core)
Subversion
Plugin
Descriptions
Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control
SECURITY-2455
/
CVE-2021-21685, CVE-2021-216
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-11-04
Published