Debian update for passenger



Published: 2019-03-25
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-16355
CWE-ID CWE-61
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		passenger (Debian package)
Operating systems & Components / Operating system package or component

Vendor Debian

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) UNIX symbolic link following

EUVDB-ID: #VU18066

Risk: Low

CVSSv3.1: 3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2017-16355

CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a symlink following issue within the agent/Core/SpawningKit/Spawner.h file. A local user can create a specially crafted symbolic link from the REVISION file to an arbitrary file on the system and view contest of arbitrary file through "passenger-status --show=xml" command.


Mitigation

Update the affected package to version: 5.0.30-1+deb9u1.

Vulnerable software versions

passenger (Debian package): 5.0.7-1 - 5.0.27-2

External links

http://www.debian.org/security/2019/dsa-4415


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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