XML External Entity injection in Universal Plugin Manager - CVE-2018-20233

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Main Vulnerability Database Vulnerabilities #VU17112

XML External Entity injection in Universal Plugin Manager - CVE-2018-20233

Published: January 22, 2019


Vulnerability identifier: #VU17112
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-20233
CWE-ID: CWE-611
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Atlassian
Affected software:
Universal Plugin Manager

Detailed vulnerability description

The vulnerability allows a remote attacker with system administrator privileges to conduct XXE-attack.

The vulnerability exists due to improper handling of XML External Entities (XXEs) when parsing of atlassian plugin xml files in an uploaded JAR. A remote attacker can submit a specially crafted input to read files, make network requests and perform a denial of service attack.


How to mitigate CVE-2018-20233

The vulnerability has been fixed in the versions 2.22.14, 3.0.0.

Sources