Vulnerability Details : CVE-2020-25237
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)
Vulnerability category: Directory traversal
Products affected by CVE-2020-25237
- cpe:2.3:a:siemens:sinema_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinema_server:14.0:-:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinema_server:14.0:sp1:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinema_server:14.0:sp2:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinema_server:14.0:sp2_update1:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinec_network_management_system:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinec_network_management_system:1.0:-:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinec_network_management_system:1.0:sp1:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-25237
0.60%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-25237
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.5
|
MEDIUM | AV:N/AC:L/Au:S/C:N/I:P/A:P |
8.0
|
4.9
|
NIST | |
8.1
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
2.8
|
5.2
|
NIST |
CWE ids for CVE-2020-25237
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by: productcert@siemens.com (Primary)
References for CVE-2020-25237
-
https://cert-portal.siemens.com/productcert/pdf/ssa-156833.pdf
Vendor Advisory
-
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-03
Siemens SINEMA Server & SINEC NMS | CISAThird Party Advisory;US Government Resource
-
https://www.zerodayinitiative.com/advisories/ZDI-21-253/
ZDI-21-253 | Zero Day InitiativeThird Party Advisory;VDB Entry
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