PT-2018-14564 · Crossroads · Crossroads

Helmut Grohne + 1 · Published 2018-10-26 · Updated 2019-10-03 · CVE-2018-18654

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Crossroads version 2.81

Description The issue arises from improper handling of the /tmp directory during the build process of xr, allowing a local attacker to create a world-writable subdirectory in a specific location under /tmp. The attacker can then wait for a user process to copy xr into this subdirectory and subsequently replace the contents with a Trojan horse version of xr.

Recommendations For Crossroads version 2.81, consider restricting access to the /tmp directory to prevent unauthorized modifications, and ensure that user processes copying xr into /tmp use secure and isolated temporary directories to minimize the risk of exploitation.

Fix

Incorrect Permission

Weakness Enumeration

CWE-732

Related Identifiers

CVE-2018-18654

Affected Products

Crossroads

References · 6

• https://cve.org/CVERecord?id=CVE-2018-18654 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-18654 · Security Note
• https://bugs.debian.org/911877 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-18654 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-18654 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-18654 · Vendor Advisory