CVE-2019-16549

描述

Jenkins Maven Release Plug-in Plugin retrieves XML from Nexus repository manager APIs. Maven Release Plug-in Plugin 0.16.1 and earlier does not configure the XML parser to prevent XML external entity (XXE) attacks. While Jenkins users without Overall/Administer permission are not allowed to configure a custom Nexus URL, this could still be exploited via man-in-the-middle attacks, especially if it’s not an HTTPS URL. Additionally, a connection test form validation method does not require POST requests, resulting in a cross-site request forgery vulnerability. Combined, these two vulnerabilities allow attackers to have Jenkins parse crafted XML documents that use external entities for extraction of secrets from the Jenkins controller, server-side request forgery, or denial-of-service attacks. Maven Release Plug-in Plugin 0.16.2 configures its XML parser to prevent XML external entity (XXE) attacks. It also now requires that requests to the connection test form validation method are done via POST, which protects from cross-site request forgery attacks.

如何修補 CVE-2019-16549

要修補 CVE-2019-16549,請將受影響套件升級到下列已修補版本。

• —升級至 0.16.2 或更新版本

CVE-2019-16549 正在被利用嗎?

低 — EPSS 為 1.0%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 0.16.2

CVSS 分數

參考連結(4)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2019-16549
• WEBwww.openwall.com/lists/oss-security/2019/12/17/1
• WEBgithub.com/jenkinsci/m2release-plugin/commit/1e4d6fee2eab16e7a396b6d3d5f10a87e5c29cc2
• WEBjenkins.io/security/advisory/2019-12-17/#SECURITY-1681