Jenkins up to 1.37 EC2 Agent os command injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in Jenkins up to 1.37. This vulnerability affects unknown code of the component EC2 Agent. The manipulation leads to os command injection. This vulnerability is traded as CVE-2017-1000502. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Jenkins up to 1.37 (Continuous Integration Software) and classified as critical. This issue affects an unknown functionality of the component EC2 Agent. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Users with permission to create or configure agents in Jenkins 1.37 and earlier could configure an EC2 agent to run arbitrary shell commands on the master node whenever the agent was supposed to be launched. Configuration of these agents now requires the 'Run Scripts' permission typically only granted to administrators.

The bug was discovered 12/06/2017. The weakness was shared 01/24/2018 (Website). It is possible to read the advisory at jenkins.io. The identification of this vulnerability is CVE-2017-1000502 since 01/24/2018. The attack may be initiated remotely. The successful exploitation needs a simple authentication. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 49 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.3.8 eliminates this vulnerability.

The entries VDB-112381 and VDB-112380 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Continuous Integration Software

Name

• Jenkins

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30
• 1.31
• 1.32
• 1.33
• 1.34
• 1.35
• 1.36
• 1.37

License

• open-source

CPE 2.3info

• 🔍
• 🔍
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CPE 2.2info

• 🔍
• 🔍
• 🔍

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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