Vulnerability · Published Jul 10, 2023 · Assigned by apache

CVE-2023-35887Apache MINA SSHD: Information disclosure bugs with RootedFilesystem

Medium 5.0

In plain English

A medium-severity path traversal in Apache MINA SSHD from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 71% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.0Medium

Exploit odds (30 days)1.3%top 29.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack tooling1Public PoC

Official description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Software Foundation Apache MINA. In SFTP servers implemented using Apache MINA SSHD that use a RootedFileSystem, logged users may be able to discover "exists/does not exist" information about items outside the rooted tree via paths including parent navigation ("..") beyond the root, or involving symlinks. This issue affects Apache MINA: from 1.0 before 2.10. Users are recommended to upgrade to 2.10

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Maven	org.apache.sshd:sshd-common	2.9.3	GHSA-mjmq-gwgm-5qhm
Maven	org.apache.sshd:sshd-core	2.1.0	GHSA-mjmq-gwgm-5qhm
Maven	org.apache.sshd:sshd-sftp	2.9.3	GHSA-mjmq-gwgm-5qhm

Affected products (as reported)

Vendor	Product	Versions
Apache Software Foundation	Apache MINA SSHD	1.0 – before 2.10

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

References

https://lists.apache.org/thread/b9qgtqvhnvgfpn0w1gz918p21p53tqk2 vendor-advisory