Jenkins up to 2.121.2/2.137 Domain Name XStream2.java deserialization
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.1 | $0-$5k | 0.00 |
A vulnerability was found in Jenkins up to 2.121.2/2.137 (Continuous Integration Software). It has been declared as critical. This vulnerability affects an unknown function of the file XStream2.java of the component Domain Name Handler. The manipulation with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality. CVE summarizes:
A vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in XStream2.java that allows attackers to have Jenkins resolve a domain name when deserializing an instance of java.net.URL.
The bug was discovered 08/15/2018. The weakness was disclosed 08/23/2018 (Website). The advisory is shared for download at jenkins.io. This vulnerability was named CVE-2018-1999042 since 08/23/2018. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.
The vulnerability scanner Nessus provides a plugin with the ID 117337 (Jenkins < 2.121.3 / 2.138 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 13256 (Jenkins Multiple Security Vulnerabilities (Jenkins Security Advisory 2018-08-15)).
Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (117337). The entries 123173, 123174, 123175 and 123176 are pretty similar.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.2
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.3
NVD Vector: 🔍
CVSSv2
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
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NVD Base Score: 🔍
Exploiting
Class: DeserializationCWE: CWE-502 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Nessus ID: 117337
Nessus Name: Jenkins < 2.121.3 / 2.138 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
08/15/2018 🔍08/15/2018 🔍
08/23/2018 🔍
08/23/2018 🔍
08/23/2018 🔍
08/24/2018 🔍
09/06/2018 🔍
03/17/2020 🔍
Sources
Advisory: jenkins.ioStatus: Not defined
Confirmation: 🔍
CVE: CVE-2018-1999042 (🔍)
See also: 🔍
Entry
Created: 08/24/2018 06:56Updated: 03/17/2020 17:00
Changes: 08/24/2018 06:56 (69), 03/17/2020 17:00 (4)
Complete: 🔍
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