Directory Traversal Affecting jsch package, versions <0.1.54-1
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ECHOLATEST-JSCH-19784371
- published14 Sept 2026
- disclosed19 Jan 2017
Introduced: 19 Jan 2017
CVE-2016-5725 (opens in a new tab)How to fix?
Upgrade Echo:latest jsch to version 0.1.54-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream jsch package and not the jsch package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
Directory traversal vulnerability in JCraft JSch before 0.1.54 on Windows, when the mode is ChannelSftp.OVERWRITE, allows remote SFTP servers to write to arbitrary files via a ..\ (dot dot backslash) in a response to a recursive GET command.
References
- https://advisory.echohq.com/cve/CVE-2016-5725
- http://packetstormsecurity.com/files/138809/jsch-0.1.53-Path-Traversal.html
- http://seclists.org/fulldisclosure/2016/Sep/53
- http://www.jcraft.com/jsch/ChangeLog
- http://www.securityfocus.com/bid/93100
- https://access.redhat.com/errata/RHSA-2017:3115
- https://github.com/tintinweb/pub/tree/master/pocs/cve-2016-5725
- https://lists.debian.org/debian-lts-announce/2020/04/msg00017.html
- https://www.exploit-db.com/exploits/40411/
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://www.exploit-db.com/exploits/40411