Vulnerability Details : CVE-2017-17850
An issue was discovered in Asterisk 13.18.4 and older, 14.7.4 and older, 15.1.4 and older, and 13.18-cert1 and older. A select set of SIP messages create a dialog in Asterisk. Those SIP messages must contain a contact header. For those messages, if the header was not present and the PJSIP channel driver was used, Asterisk would crash. The severity of this vulnerability is somewhat mitigated if authentication is enabled. If authentication is enabled, a user would have to first be authorized before reaching the crash point.
Vulnerability category: Input validation
Threat overview for CVE-2017-17850
Top countries where our scanners detected CVE-2017-17850
Top open port discovered on systems with this issue
8088
IPs affected by CVE-2017-17850 9,137
Threat actors abusing to this issue?
Yes
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Exploit prediction scoring system (EPSS) score for CVE-2017-17850
92.87%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less