CVE-2016-6287
Under several web servers this would mean a user-supplied "Proxy" header could allow an attacker to direct all HTTP requests through a proxy (also known as a "httpoxy" attack).
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.48%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The "http-client" egg always used a HTTP_PROXY environment variable to determine whether HTTP traffic should be routed via a proxy, even when running as a CGI process. Under several web servers this would mean a user-supplied "Proxy" header could allow an attacker to direct all HTTP requests through a proxy (also known as a "httpoxy" attack). This affects all versions of http-client before 0.10.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.48% probability · 72th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-19
- Affected
- call-cc/http-client
- Source
- cve@mitre.org
References
- http://lists.gnu.org/archive/html/chicken-announce/2016-07/msg00000.htmlMitigation, Third Party Advisory
- http://www.securityfocus.com/bid/92105Third Party Advisory, VDB Entry
- http://lists.gnu.org/archive/html/chicken-announce/2016-07/msg00000.htmlMitigation, Third Party Advisory
- http://www.securityfocus.com/bid/92105Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.