Warnings Plugin up to 4.64 on Jenkins XML Data xml external entity reference

Summaryinfo

A vulnerability was found in Warnings Plugin up to 4.64 on Jenkins. It has been classified as critical. Affected by this issue is some unknown functionality of the component XML Data Handler. The manipulation leads to xml external entity reference. This vulnerability is referenced as CVE-2018-1000012. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Warnings Plugin up to 4.64 on Jenkins (Jenkins Plugin). It has been rated as critical. This issue affects an unknown code block of the component XML Data Handler. The manipulation with an unknown input leads to a xml external entity reference vulnerability. Using CWE to declare the problem leads to CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Jenkins Warnings Plugin 4.64 and earlier processes XML external entities in files it parses as part of the build process, allowing attackers with user permissions in Jenkins to extract secrets from the Jenkins master, perform server-side request forgery, or denial-of-service attacks.

The bug was discovered 01/22/2018. The weakness was published 01/23/2018 (Website). It is possible to read the advisory at jenkins.io. The identification of this vulnerability is CVE-2018-1000012 since 01/23/2018. The exploitation is known to be easy. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entries are available at VDB-112351, VDB-112352, VDB-112353 and VDB-112354. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Jenkins Plugin

Name

• Warnings Plugin

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7
• 4.8
• 4.9
• 4.10
• 4.11
• 4.12
• 4.13
• 4.14
• 4.15
• 4.16
• 4.17
• 4.18
• 4.19
• 4.20
• 4.21
• 4.22
• 4.23
• 4.24
• 4.25
• 4.26
• 4.27
• 4.28
• 4.29
• 4.30
• 4.31
• 4.32
• 4.33
• 4.34
• 4.35
• 4.36
• 4.37
• 4.38
• 4.39
• 4.40
• 4.41
• 4.42
• 4.43
• 4.44
• 4.45
• 4.46
• 4.47
• 4.48
• 4.49
• 4.50
• 4.51
• 4.52
• 4.53
• 4.54
• 4.55
• 4.56
• 4.57
• 4.58
• 4.59
• 4.60
• 4.61
• 4.62
• 4.63
• 4.64

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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