PT-2018-19083 · Docker · Runv

Published 2018-04-09 · Updated 2019-10-03 · CVE-2018-9862

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 runV version 1.0.0

Description The issue in util.c allows attackers to gain root access by exploiting a numeric username in /etc/passwd and then using a "docker exec" command with the numeric value in the -u argument. This is similar to a previously known issue.

Recommendations For runV version 1.0.0, consider restricting access to the "docker exec" command to prevent exploitation until a fix is available. Additionally, reviewing and securing /etc/passwd entries to prevent initial numeric values may help mitigate the risk. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-838

Related Identifiers

CVE-2018-9862

Affected Products

Runv

References · 4

• https://github.com/hyperhq/hyperstart/pull/348 · Patch
• https://osv.dev/vulnerability/CVE-2018-9862 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-9862 · Security Note
• http://securityfocus.com/bid/103738 · Note