Jenkins up to 2.121.2/2.137 SecurityRealm.java Cookie improper authentication
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.6 | $0-$5k | 0.00 |
A vulnerability classified as critical was found in Jenkins up to 2.121.2/2.137 (Continuous Integration Software). Affected by this vulnerability is an unknown part of the file SecurityRealm.java. The manipulation as part of a Cookie leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
A improper authentication vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in SecurityRealm.java, TokenBasedRememberMeServices2.java that allows attackers with a valid cookie to remain logged in even if that feature is disabled.
The bug was discovered 08/15/2018. The weakness was published 08/23/2018 (Website). It is possible to read the advisory at jenkins.io. This vulnerability is known as CVE-2018-1999045 since 08/23/2018. The attack can be launched remotely. A single authentication is necessary for exploitation. Technical details of the vulnerability are known, but there is no available exploit.
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). Similar entries are available at 123172, 123173, 123174 and 123176.
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: 5.9VulDB Meta Temp Score: 5.7
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.4
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Improper authenticationCWE: CWE-287
ATT&CK: Unknown
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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Today | unlock | unlock | unlock | unlock |
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-2018-1999045 (🔍)
See also: 🔍
Entry
Created: 08/24/2018 06:58Updated: 03/17/2020 17:18
Changes: 08/24/2018 06:58 (70), 03/17/2020 17:18 (4)
Complete: 🔍
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