CVE-2020-4042
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.
Does this matter?
Lower severity and a low EPSS score (0.97%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.8 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
- EPSS
- 0.97% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-294
- Affected
- bareos/bareos
- Source
- security-advisories@github.com
References
- https://bugs.bareos.org/view.php?id=1250Vendor Advisory
- https://github.com/bareos/bareos/security/advisories/GHSA-vqpj-2vhj-h752Mitigation, Third Party Advisory
- https://bugs.bareos.org/view.php?id=1250Vendor Advisory
- https://github.com/bareos/bareos/security/advisories/GHSA-vqpj-2vhj-h752Mitigation, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.