Vulnerability identifier: #VU8063
Vulnerability risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-384
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Certified Asterisk
Server applications /
Conferencing, Collaboration and VoIP solutions
Asterisk Open Source
Server applications /
Conferencing, Collaboration and VoIP solutions
Vendor: Digium (Linux Support Services)
Description
The vulnerability allows a remote attacker to hijack the target user's media session.
The weakness exists due to a flaw in the strict RTP support feature. A remote attacker can send specially crafted RTP traffic to provide and receive media from the session.
Mitigation
The vulnerability is addressed in the following versions:
Asterisk Open Source - 11.25.2, 13.17.1, 14.6.1.
Certified Asterisk - 11.6-cert17, 13.13-cert5.
Vulnerable software versions
Certified Asterisk: 11.6.0 - 13.13
Asterisk Open Source: 13.0.0 - 13.15.1, 11.0.0 - 11.21.0, 14.0 - 14.4.1
External links
http://downloads.asterisk.org/pub/security/AST-2017-005.html
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.