CVE-2017-5899

Public Exploit

Description

Directory traversal vulnerability in the setuid root helper binary in S-nail (later S-mailx) before 14.8.16 allows local users to write to arbitrary files and consequently gain root privileges via a .. (dot dot) in the randstr argument.

Category

7.0
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.92% Top 30%
Third-Party Advisory openwall.com Third-Party Advisory openwall.com Third-Party Advisory securityfocus.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2017/02/07/4 third party advisory mailing list
https://www.mail-archive.com/s-nail-users%40lists.sourceforge.net/msg00551.html mailing list
http://www.openwall.com/lists/oss-security/2017/01/27/7 mailing list exploit third party advisory
http://www.securityfocus.com/bid/96138 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-5899?
CVE-2017-5899 has been scored as a high severity vulnerability.
How to fix CVE-2017-5899?
To fix CVE-2017-5899, 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-2017-5899 being actively exploited in the wild?
It is possible that CVE-2017-5899 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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