PT-2018-9604 · Logisim · Logisim Evolution

Kvakil · Published 2018-12-27 · Updated 2019-02-13 · CVE-2018-1000889

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Logisim Evolution versions prior to 2.14.4

Description: The issue is related to an XML External Entity (XXE) vulnerability in the Circuit file loading functionality, specifically in the loadXmlFrom function within src/com/cburch/logisim/file/XmlReader.java. This can lead to information leaks and potentially Remote Code Execution (RCE) depending on the system configuration. The attack is exploitable if a victim opens a specially crafted circuit file.

Recommendations: For versions prior to 2.14.4, update to version 2.14.4 or later to resolve the issue. As a temporary workaround, consider avoiding the use of the loadXmlFrom function in XmlReader.java until the update is applied. Restrict access to specially crafted circuit files to minimize the risk of exploitation.

Fix

XXE

Weakness Enumeration

CWE-611

Related Identifiers

CVE-2018-1000889

Affected Products

Logisim Evolution

References · 4

• https://github.com/reds-heig/logisim-evolution/pull/139 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2018-1000889 · Security Note
• https://osv.dev/vulnerability/CVE-2018-1000889 · Vendor Advisory
• https://kvakil.me/posts/logisim · Note