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Case File

CVE-2020-4042

MEDIUM · CVSS 6.8 EPSS 0.97% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-07-10 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2020-4042
Severity
MEDIUM
CVSS
6.8
EPSS
0.97%

Original NVD Description

Bareos before version 19.2.8 and earlier allows a malicious client to communicate with the director without knowledge of the shared secret if the director allows client initiated connection and connects to the client itself. The malicious client can replay the Bareos director's cram-md5 challenge to the director itself leading to the director responding to the replayed challenge. The response obtained is then a valid reply to the directors original challenge. This is fixed in version 19.2.8.

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