CVE-2020-25237
What it is
A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP1 Update 1), SINEMA Server (All versions < V14.0 SP2 Update 2). When uploading files to an affected system using a zip container, the system does not correctly check if the relative file path of the extracted files is still within the intended target directory. With this an attacker could create or overwrite arbitrary files on an affected system. This type of vulnerability is also known as 'Zip-Slip'. (ZDI-CAN-12054)
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account. High risk of data tampering, service disruption.
- Exploit odds
- 20.6% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 20.6% in the next 30 days (EPSS).
- Severity: 8.1 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 20.6% · EPSS, next 30 days
- Weakness
- CWE-22 · Path traversal
- Record status
- Modified
Affected
- Siemens Sinec Network Management System < 1.0
- Siemens Sinec Network Management System 1.0
- Siemens Sinema Server < 14.0
- Siemens Sinema Server 14.0
Attack profile CVSS 3.1 · 8.1
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2020-25237.md and follow it. Check whether this project is affected by CVE-2020-25237. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://cert-portal.siemens.com/productcert/pdf/ssa-156833.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-156833.pdf
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-156833.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-040-03
- https://www.zerodayinitiative.com/advisories/ZDI-21-253/
- https://cert-portal.siemens.com/productcert/pdf/ssa-156833.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-040-03
- https://www.zerodayinitiative.com/advisories/ZDI-21-253/