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CVE-2017-5899

HighPublished

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...

Published: Mar 27, 2017
Updated: Aug 5, 2024
Assigning CNA: mitre
Evidence observed: Jan 13, 2019

Primary CVSS

7.0/ 10High

nvd · CVSS 3.0

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

0.9%

Low · next 30 days

Percentile: 57.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

local-exploitsExploit
Various local exploits
S-nail < 14.8.16 - Local Privilege EscalationExploit
bcoles · multiple · Jan 13, 2019

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