Input validation error in Debian products - CVE-2016-1232
Published: January 12, 2016 / Updated: August 9, 2020
Vulnerability identifier: #VU40526
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2016-1232
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Prosody
Fedoraproject
Debian
Fedoraproject
Debian
Affected software:
Prosody
Fedora
Debian Linux
Prosody
Fedora
Debian Linux
Detailed vulnerability description
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>
How to mitigate CVE-2016-1232
Install update from vendor's website.
Sources
- 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/