Input validation error in Fedoraproject products - CVE-2016-1232
Published: January 12, 2016 / Updated: August 9, 2020
Vulnerability identifier: #VU40526
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-1232
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
The mod_dialback module in Prosody before 0.9.9 does not properly generate random values for the secret token for server-to-server dialback authentication, which makes it easier for attackers to spoof servers via a brute force attack. <a href="https://cwe.mitre.org/data/definitions/338.html">CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)</a>
Affected software
Debian Linux
Fedora
Prosody
prosody
Fedora
Prosody
prosody
How to mitigate CVE-2016-1232
Install update from vendor's website.
prosody - addressed in versions 0.9.9-2.el5, 0.9.9-2.el6, 0.9.9-2.el7, 0.9.9-2.fc22, 0.9.9-2.fc23
External References
- http://blog.prosody.im/prosody-0-9-9-security-release/
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175829.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175868.html
- http://www.debian.org/security/2016/dsa-3439
- http://www.openwall.com/lists/oss-security/2016/01/08/5
- https://prosody.im/issues/issue/571
- https://prosody.im/security/advisory_20160108-2/