Vulnerability CVE-2016-1000108
Published: 2019-12-10

Description:
yaws before 2.0.4 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue.

Type:

CWE-601

 (URL Redirection to Untrusted Site ('Open Redirect'))

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.8/10
4.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
YAWS -> YAWS 
Debian -> Debian linux 

 References:
http://www.openwall.com/lists/oss-security/2016/07/18/6
https://github.com/klacke/yaws/commit/9d8fb070e782c95821c90d0ca7372fc6d7316c78#diff-54053c47eb173a90c26ed19bd9d106c1
https://raw.githubusercontent.com/distributedweaknessfiling/cvelist/master/2016/1000xxx/CVE-2016-1000108.json
https://security-tracker.debian.org/tracker/CVE-2016-1000108
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