PT-2021-13754 · Tenable · Tenable.Sc

Nicolas Verdier · Published 2021-03-03 · Updated 2021-03-10 · CVE-2021-20076

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Tenable.sc and Tenable.sc Core versions 5.13.0 through 5.17.0

Description: The issue allows an authenticated, unprivileged user to perform Remote Code Execution (RCE) on the Tenable.sc server via Hypertext Preprocessor unserialization.

Recommendations: For versions 5.13.0 through 5.17.0, update to a version that contains a fix for this issue to prevent Remote Code Execution (RCE) on the Tenable.sc server. As a temporary workaround, consider restricting access to the Hypertext Preprocessor unserialization functionality until a patch is available.

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2021-20076

Affected Products

Tenable.Sc

References · 5

• https://osv.dev/vulnerability/CVE-2021-20076 · Vendor Advisory
• https://tenable.com/security/tns-2021-03 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-20076 · Security Note
• https://t.me/cvenotify/11083 · Telegram Post
• https://t.me/cibsecurity/24410 · Telegram Post