CVE-2017-5868

Public Exploit

Description

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__/.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 5.51% Top 15%
Third-Party Advisory openwall.com Third-Party Advisory securitytracker.com Third-Party Advisory sysdream.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://sysdream.com/news/lab/2017-05-05-cve-2017-5868-openvpn-access-server-crlf-injection-with-session-fixation/ exploit third party advisory mitigation
http://www.securitytracker.com/id/1038547 vdb entry third party advisory
http://www.openwall.com/lists/oss-security/2017/05/23/13 mailing list exploit third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-5868?
CVE-2017-5868 has been scored as a medium severity vulnerability.
How to fix CVE-2017-5868?
To fix CVE-2017-5868, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-5868 being actively exploited in the wild?
It is possible that CVE-2017-5868 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~6% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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