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.
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Tue, 01 Oct 2024 17:30:00 +0000
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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
Vulnrichment
Updated: 2024-08-02T18:46:11.839Z
NVD
Status : Modified
Published: 2023-08-31T18:15:09.280
Modified: 2024-11-21T08:20:26.903
Link: CVE-2023-41045
Redhat
No data.