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High severity · published Feb 9, 2021
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)
8.1
CVSS
20.6%
EPSS
No
On KEV
Description
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)
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)20.6% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SN
Sinec Network Management System · Siemens
before 1.0; 1.0; 1.0 · source: NVD
SS
Sinema Server · Siemens
before 14.0; 14.0; 14.0; 14.0; 14.0 · source: NVD
Affected product
SN
Sinec Network Management System
Siemens
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-25237
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-25237
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-156833.pdf
Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-03
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-253/
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