Security restrictions bypass in Prosody - CVE-2018-10847

Vulnerability identifier: #VU13181

CSH Severity: Low

CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-10847

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote authenticated attacker to bypass security restrictions on the target system.

The weakness exists due to insufficient validation of client-provided parameters during XMPP stream restarts. A remote attacker can supply specially crafted parameters, override the realm associated with the session, bypass security restrictions and impersonate a legitimate user.

Prosody
Debian Linux
Fedora
prosody (Alpine package)
openSUSE Leap
prosody

The vulnerability is addressed in the following versions: 0.9.14, 0.10.2.

prosody (Alpine package) - update to 0.10.2-r0
prosody - addressed in versions 0.10.2-1.el6, 0.10.2-1.el7, 0.10.2-1.fc27, 0.10.2-1.fc28

• https://prosody.im/security/advisory_20180531/

• Security restrictions bypass in Prosody
• Debian update for prosody
• OpenSUSE Linux update for prosody
• OpenSUSE Linux update for prosody
• Security restrictions bypass in prosody (Alpine package)
• Fedora 28 update for prosody
• Fedora 27 update for prosody
• Fedora EPEL 7 update for prosody
• Fedora EPEL 6 update for prosody