CVE-2020-4042

Authentication bypass in Bareos

State
Published
Severity
6.8 Medium
Published
Jul 10, 2020
Updated
Aug 4, 2024
Reserved
Dec 30, 2019

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.16.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:NGitHub_M

Weaknesses

  • CWE-294 Authentication Bypass by Capture-replay

Affected Products

ProductVersions
bareosbareos
  • < 19.2.8Affected

References

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