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List: oss-security
Subject: [oss-security] CVE-2018-1312: Weak Digest auth nonce generation in mod_auth_digest
From: Daniel Ruggeri <druggeri () apache ! org>
Date: 2018-03-24 2:50:00
Message-ID: E1ezZFo-00031p-ID () romulus ! home ! bitnebula ! com
[Download RAW message or body]
CVE-2018-1312: Weak Digest auth nonce generation in mod_auth_digest
Severity: Low
Vendor: The Apache Software Foundation
Versions Affected:
httpd 2.2.0 to 2.4.29
Description:
When generating an HTTP Digest authentication challenge, the nonce
sent to prevent reply attacks was not correctly generated using a
pseudo-random seed. In a cluster of servers using a common Digest
authentication configuration, HTTP requests could be replayed across
servers by an attacker without detection.
Mitigation:
All httpd users should upgrade to 2.4.30 or later.
Credit:
The issue was discovered by Nicolas Daniels.
References:
https://httpd.apache.org/security/vulnerabilities_24.html
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