PT-2023-26658 · Unknown · Opensis Classic

Florian Walter · Published 2023-11-20 · Updated 2025-05-29 · CVE-2023-38879

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions openSIS Classic version 9.0

Description The issue allows remote attackers to read arbitrary files via a directory traversal vulnerability in the filename parameter of the "DownloadWindow.php" endpoint.

Recommendations For version 9.0, consider restricting access to the "DownloadWindow.php" endpoint until a patch is available, and avoid using the filename parameter to minimize the risk of exploitation.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2023-38879

Affected Products

Opensis Classic

References · 8

• 🔥 https://github.com/dub-flow/vulnerability-research/tree/main/CVE-2023-38879 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-38879 · Security Note
• https://osv.dev/vulnerability/CVE-2023-38879 · Vendor Advisory
• https://github.com/OS4ED/openSIS-Classic · Note
• https://t.me/cvenotify/61555 · Telegram Post
• https://os4ed.com · Note
• https://twitter.com/pdnuclei_bot/status/1927288681586372878 · Twitter Post
• https://twitter.com/arpsyndicate/status/1928016882688266575 · Twitter Post