CVE-2016-1000108
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…
Does this matter?
Lower severity and a low EPSS score (1.10%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.10% probability · 64th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-601
- Affected
- yaws/yaws · debian/debian linux
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2016/07/18/6Mailing List, Third Party Advisory
- https://github.com/klacke/yaws/commit/9d8fb070e782c95821c90d0ca7372fc6d7316c78#diff-54053c47eb173a90c26ed19bd9d106c1Patch, Third Party Advisory
- https://raw.githubusercontent.com/distributedweaknessfiling/cvelist/master/2016/1000xxx/CVE-2016-1000108.jsonThird Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2016-1000108Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/07/18/6Mailing List, Third Party Advisory
- https://github.com/klacke/yaws/commit/9d8fb070e782c95821c90d0ca7372fc6d7316c78#diff-54053c47eb173a90c26ed19bd9d106c1Patch, Third Party Advisory
- https://raw.githubusercontent.com/distributedweaknessfiling/cvelist/master/2016/1000xxx/CVE-2016-1000108.jsonThird Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2016-1000108Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.