Vulnerability in Golang Go
CVE-2016-5386
The net/http package in Go through 1.6 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.052 (92.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.052 · newest: 0.052 · change: 0.000
Affected products
- Golang Go — versions 1.7
- Oracle Linux — versions 7
- Fedoraproject Fedora — versions 23, 24
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.2
- Red Hat Enterprise Linux Server Eus — versions 7.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.kb.cert.org/vuls/id/797896 (US Government Resource, Third Party Advisory, third-party-advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- rhn.redhat.com/errata/RHSA-2016-1538.html (vendor-advisory, Third Party Advisory)
- h20566.www2.hpe.com/hpsc/doc/public/display (Third Party Advisory)
- httpoxy.org/ (Third Party Advisory)
- www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-5386?
- CVE-2016-5386 is a high-severity vulnerability in Golang Go, classified under Improper Access Control. CVSS score: 8.1/10. Published 2016-07-19.
- How severe is CVE-2016-5386?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2016-5386 known to be exploited?
- 43 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.