Graylog is a free and open log management platform. Graylog makes use of only one single source port for DNS queries. Graylog binds a single socket for outgoing DNS queries and while that socket is bound to a random port number it is never changed again. This goes against recommended practice since 2008, when Dan Kaminsky discovered how easy is to carry out DNS cache poisoning attacks. In order to prevent cache poisoning with spoofed DNS responses, it is necessary to maximise the uncertainty in the choice of a source port for a DNS query. Although unlikely in many setups, an external attacker could inject forged DNS responses into a Graylog's lookup table cache. In order to prevent this, it is at least recommendable to distribute the DNS queries through a pool of distinct sockets, each of them with a random source port and renew them periodically. This issue has been addressed in versions 5.0.9 and 5.1.3. Users are advised to upgrade. There are no known workarounds for this issue.
History

Tue, 01 Oct 2024 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-08-31T17:59:41.147Z

Updated: 2024-10-01T16:56:12.604Z

Reserved: 2023-08-22T16:57:23.932Z

Link: CVE-2023-41045

cve-icon Vulnrichment

Updated: 2024-08-02T18:46:11.839Z

cve-icon NVD

Status : Modified

Published: 2023-08-31T18:15:09.280

Modified: 2024-11-21T08:20:26.903

Link: CVE-2023-41045

cve-icon Redhat

No data.