PT-2020-10393 · Raspberry Pi · Pisignage

Aegisduck · Published 2020-01-06 · Updated 2020-01-14 · CVE-2019-20354

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions piSignage versions prior to 2.6.4

Description The issue allows a remote attacker, authenticated as a low-privilege user, to download arbitrary files from the Raspberry Pi. This is achieved through a path traversal vulnerability in the "api/settings/log" endpoint, specifically by manipulating the file parameter with a "../" sequence. The vulnerability is located in the player API for log download.

Recommendations For versions prior to 2.6.4, update to version 2.6.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the "api/settings/log" endpoint or disabling the log download feature until a patch is applied. Avoid using the file parameter in the affected API endpoint until the issue is resolved.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2019-20354

Affected Products

Pisignage

References · 6

• 🔥 https://github.com/colloqi/piSignage/issues/97 · Exploit
• 🔥 https://exploit-db.com/exploits/47882 · Exploit
• 🔥 http://packetstormsecurity.com/files/155864/piSignage-2.6.4-Directory-Traversal.html · Exploit
• https://osv.dev/vulnerability/CVE-2019-20354 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-20354 · Security Note
• https://github.com/colloqi/piSignage/blob/master/RELEASE%20NOTES.md · Note