CVE-2022-24756

Bareos is open source software for backup, archiving, and recovery of data for operating systems. When Bareos Director >= 18.2 but prior to 21.1.0, 20.0.6, and 19.2.12 is built and configured for PAM authentication, a failed PAM authentication will leak a small amount of memory. An attacker that is able to use the PAM Console (i.e. by knowing the shared secret or via the WebUI) can flood the Director with failing login attempts which will eventually lead to an out-of-memory condition in which the Director will not work anymore. Bareos Director versions 21.1.0, 20.0.6 and 19.2.12 contain a Bugfix for this problem. Users who are unable to upgrade may disable PAM authentication as a workaround.

CVSS v3.0 7.5 HIGH
CVSS v2.0 4.3 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/bareos/bareos/pull/1121	Patch Third Party Advisory
https://github.com/bareos/bareos/security/advisories/GHSA-jh55-4wgw-xc9j	Third Party Advisory
https://github.com/bareos/bareos/pull/1119	Patch Third Party Advisory
https://github.com/bareos/bareos/pull/1115	Patch Third Party Advisory
https://huntr.dev/bounties/480121f2-bc3c-427e-986e-5acffb1606c5/	Exploit Patch Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:bareos:bareos::::::::
	cpe:2.3:a:bareos:bareos::::::::
	cpe:2.3:a:bareos:bareos::::::::

Information

Published : 2022-03-15 08:15

Updated : 2022-03-23 19:58

NVD link : CVE-2022-24756

Mitre link : CVE-2022-24756

JSON object : View

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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Products Affected

bareos

bareos

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