GHSA-2x9h-h3c4-wqqh CVE-2016-9299
Improper Neutralization of Special Elements used in an LDAP Query in Jenkins
Critical
Maven
- Severity
- 9.8 / 10
- Critical · CVSS 3.0
- Exploit chance (EPSS)
- 96.94%
- Chance of exploitation in the next 30 days. Higher than 99.89% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-90 Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
- Fix
2.32- Upgrade org.jenkins-ci.main:jenkins-core to this version or later
Description
The remoting module in Jenkins before 2.32 and LTS before 2.19.3 allows remote attackers to execute arbitrary code via a crafted serialized Java object, which triggers an LDAP query to a third-party server.
Affected versions
Maven
| Package | Vulnerable | Fixed in |
|---|---|---|
| org.jenkins-ci.main:jenkins-core | >= 2.20, < 2.32 |
2.32 |
| org.jenkins-ci.main:jenkins-core | < 2.19.3 |
2.19.3 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
org.jenkins-ci.main:jenkins-core Maven → 2.32
- maven
<dependency><groupId>org.jenkins-ci.main</groupId><artifactId>jenkins-core</artifactId><version>2.32</version></dependency>- gradle
implementation("org.jenkins-ci.main:jenkins-core:2.32")
Severity breakdown
CVSS 3.0 9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Weakness
CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
The product constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component.
How to prevent it
- Implementation: Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does. When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue." Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
References
Advisories
Packages
Other links
- github.com/jenkinsci/jenkins/commit/6078dd7aa097baf3402de9d5279f6053926a1ea7
- github.com/jenkinsci/jenkins/commit/ce8a2d51a5ee9ca12d0a75659b06161888e0a1bf
- github.com/jenkinsci/jenkins/commit/d84d9a2ad3825f316f805a18b3654b0803e0d7fc
- github.com/jenkinsci/jenkins/commit/f574224cae5ffde2bc4c996305c0dcf5ab135440
- github.com/jenkinsci/jenkins/commit/fde9c42fe05ac925a904b6c09a81d497d0e6ccea
- groups.google.com/forum
- groups.google.com/forum
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZW2KU…
- wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2016-11-16
- cloudbees.com/jenkins-security-advisory-2016-11-16
- exploit-db.com/exploits/44642
- openwall.com/lists/oss-security/2016/11/12/4
- openwall.com/lists/oss-security/2016/11/14/9
- slideshare.net/codewhitesec/java-deserialization-vulnerabilities-the-forgotten-bug-…
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-6f9g-cxwr-q5jr Arbitrary file read vulnerability through the Jenkins CLI can lead to RCE | Critical Known exploited | Also affects org.jenkins-ci.main:jenkins-core |
| GHSA-8pqx-3rxx-f5pm Jenkins discloses project names via fingerprints | High Known exploited | Also affects org.jenkins-ci.main:jenkins-core |
| GHSA-26wc-3wqp-g3rp Deserialization of Untrusted Data in Jenkins | Critical Known exploited | Also affects org.jenkins-ci.main:jenkins-core |
| CVE-2018-1000861 Deserialization of Untrusted Data in Jenkins | Critical Known exploited | Also affects org.jenkins-ci.main:jenkins-core |
| GHSA-m6wv-wh8g-64xc Jenkins does not encrypt secrets from POST config.xml submissions before storing them in job configurations | Medium | Also affects org.jenkins-ci.main:jenkins-core |
| GHSA-93qh-vwrm-c5pw Jenkins: Stored XSS vulnerability in node offline cause description | Medium | Also affects org.jenkins-ci.main:jenkins-core |
| GHSA-92m7-4fpw-2wxm Jenkins: Open Redirect phishing attacks possible via "from" parameter in "Delegate to servlet container" | Medium | Also affects org.jenkins-ci.main:jenkins-core |
| GHSA-g28p-6mcc-v4rv Jenkins exposes other users' timezone and view names to users with Overall/Read permission | Medium | Also affects org.jenkins-ci.main:jenkins-core |
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