VDB-123173 · CVE-2018-1999043 · Qualys 13256

Jenkins up to 2.121.2/2.137 Login BasicAuthenticationFilter.java resource management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

A vulnerability was found in Jenkins up to 2.121.2/2.137 (Continuous Integration Software). It has been rated as problematic. This issue affects an unknown functionality of the file BasicAuthenticationFilter.java of the component Login Handler. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

A denial of service vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in BasicAuthenticationFilter.java, BasicHeaderApiTokenAuthenticator.java that allows attackers to create ephemeral in-memory user records by attempting to log in using invalid credentials.

The bug was discovered 08/15/2018. The weakness was presented 08/23/2018 (Website). The advisory is shared at jenkins.io. The identification of this vulnerability is CVE-2018-1999043 since 08/23/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, 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). See 123172, 123174, 123175 and 123176 for similar entries.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/15/2018 🔍
08/15/2018 +0 days 🔍
08/23/2018 +7 days 🔍
08/23/2018 +0 days 🔍
08/23/2018 +0 days 🔍
08/24/2018 +1 days 🔍
09/06/2018 +13 days 🔍
03/17/2020 +558 days 🔍

Sourcesinfo

Advisory: jenkins.io
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-1999043 (🔍)
See also: 🔍

Entryinfo

Created: 08/24/2018 06:57
Updated: 03/17/2020 17:05
Changes: 08/24/2018 06:57 (69), 03/17/2020 17:05 (4)
Complete: 🔍

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