Vulnerability Details : CVE-2019-16948
An SSRF issue was discovered in Enghouse Web Chat 6.1.300.31. In any POST request, one can replace the port number at WebServiceLocation=http://localhost:8085/UCWebServices/ with a range of ports to determine what is visible on the internal network (as opposed to what general web traffic would see on the product's host). The response from open ports is different than from closed ports. The product does not allow one to change the protocol: anything except http(s) will throw an error; however, it is the type of error that allows one to determine if a port is open or not.
Vulnerability category: Server-side request forgery (SSRF)
Products affected by CVE-2019-16948
- cpe:2.3:a:enghouse:web_chat:6.1.300.31:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-16948
0.66%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 77 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-16948
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2019-16948
-
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-16948
-
https://mjlanders.com/2019/11/07/multiple-vulnerabilities-found-in-enghouse-zeacom-web-chat/
Multiple vulnerabilities found in Enghouse/Zeacom web chat – Matt LandersExploit;Third Party Advisory
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