Vulnerability in Openvpn Access Server
CVE-2017-5868
CRLF injection vulnerability in the web interface in OpenVPN Access Server 2.1.4 allows remote attackers to inject arbitrary HTTP headers and consequently conduct session fixation attacks and possibly HTTP response splitting attacks via "%0A" characters in the PATH_INFO to __session_start__/.
Vulnerability class: CRLF Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.046 (91.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.046 · newest: 0.046 · change: 0.000
Affected products
- Openvpn Access Server — versions 2.1.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sysdream.com/news/lab/2017-05-05-cve-2017-5868-openvpn-access-server-crlf-injec… (Exploit, Third Party Advisory, Mitigation)
- www.securitytracker.com/id/1038547 (VDB Entry, Third Party Advisory, vdb-entry)
- www.openwall.com/lists/oss-security/2017/05/23/13 (mailing-list, Exploit, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-5868?
- CVE-2017-5868 is a medium-severity vulnerability in Openvpn Access Server, classified under CRLF Injection. CVSS score: 6.1/10. Published 2017-05-26.
- How severe is CVE-2017-5868?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2017-5868 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.