CVE-2023-41045
Graylog DNS Source Port Vulnerability (Prediction Cache Poisoning)
Description
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.
INFO
Published Date :
Aug. 31, 2023, 6:15 p.m.
Last Modified :
Sept. 6, 2023, 8:02 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
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information, practical solutions, and valuable tools related to
CVE-2023-41045.
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The following list is the news that have been mention
CVE-2023-41045 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-41045 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Sep. 06, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Changed Reference Type https://github.com/Graylog2/graylog2-server/commit/466af814523cffae9fbc7e77bab7472988f03c3e No Types Assigned https://github.com/Graylog2/graylog2-server/commit/466af814523cffae9fbc7e77bab7472988f03c3e Patch Changed Reference Type https://github.com/Graylog2/graylog2-server/commit/a101f4f12180fd3dfa7d3345188a099877a3c327 No Types Assigned https://github.com/Graylog2/graylog2-server/commit/a101f4f12180fd3dfa7d3345188a099877a3c327 Patch Changed Reference Type https://github.com/Graylog2/graylog2-server/security/advisories/GHSA-g96c-x7rh-99r3 No Types Assigned https://github.com/Graylog2/graylog2-server/security/advisories/GHSA-g96c-x7rh-99r3 Exploit, Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:graylog:graylog:*:*:*:*:*:*:*:* versions up to (excluding) 5.0.9 *cpe:2.3:a:graylog:graylog:*:*:*:*:*:*:*:* versions from (including) 5.1.0 up to (excluding) 5.1.3
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-41045 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-41045
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} 0.01%
score
0.38248
percentile