Path Traversal in Siemens Cp-8031
CVE-2023-42796
A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05.11), CP-8050 MASTER MODULE (All versions < CPCI85 V05.11). The web server of affected devices fails to properly sanitize user input for the /sicweb-ajax/tmproot/ endpoint. This could allow an authenticated remote attacker to traverse directories on the system and download arbitrary files. By exploring active session IDs, the vulnerability could potentially be leveraged to escalate privileges to the administrator role.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.007 (50.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Siemens Cp-8031
- Siemens Cp-8031_firmware
- Siemens Cp-8031 Master Module — versions All versions < CPCI85 V05.11
- Siemens Cp-8050
- Siemens Cp-8050_firmware
- Siemens Cp-8050 Master Module — versions All versions < CPCI85 V05.11
Weakness classification (CWE)
References
- productcert@siemens.com (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-42796?
- CVE-2023-42796 is a high-severity vulnerability in Siemens Cp-8031, classified under Path Traversal. CVSS score: 7.5/10. Published 2023-10-10.
- How severe is CVE-2023-42796?
- High severity. CVSS v3 base score is 7.5 out of 10.