CVE-2020-4042

medium

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.

References

https://github.com/bareos/bareos/security/advisories/GHSA-vqpj-2vhj-h752

https://bugs.bareos.org/view.php?id=1250

Details

Source: Mitre, NVD

Published: 2020-07-10

Updated: 2020-07-15

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.8

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N

Severity: Medium