Vulnerability Details : CVE-2020-26155
Multiple files and folders in Utimaco SecurityServer 4.20.0.4 and 4.31.1.0. are installed with Read/Write permissions for authenticated users, which allows for binaries to be manipulated by non-administrator users. Additionally, entries are made to the PATH environment variable which, in conjunction with these weak permissions, could enable an attacker to perform a DLL hijacking attack.
Products affected by CVE-2020-26155
- cpe:2.3:o:utimaco:block-safe_firmware:2.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:utimaco:block-safe_firmware:3.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:utimaco:cryptoserver_cp5_firmware:5.0.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:utimaco:cryptoserver_cp5_firmware:5.1.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:utimaco:cryptoserver_cp5_vs-nfd_firmware:5.1.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:utimaco:paymentserver_firmware:*:*:*:*:*:*:*:*
- Utimaco » Paymentserver Hybrid FirmwareVersions from including (>=) 3.0 and up to, including, (<=) 4.33.0cpe:2.3:o:utimaco:paymentserver_hybrid_firmware:*:*:*:*:*:*:*:*
- Utimaco » Securityserver FirmwareVersions from including (>=) 3.0 and up to, including, (<=) 4.31.1cpe:2.3:o:utimaco:securityserver_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-26155
0.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-26155
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.4
|
MEDIUM | AV:L/AC:M/Au:N/C:P/I:P/A:P |
3.4
|
6.4
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2020-26155
-
The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.Assigned by: nvd@nist.gov (Primary)
-
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-26155
-
https://secureyourit.co.uk/wp/2021/03/13/utimaco-cve-2020-26155/
Utimaco – CVE-2020-26155 – secureyourit.co.ukThird Party Advisory
-
https://hsm.utimaco.com/products-hardware-security-modules/general-purpose-hsm/
SecurityServer – Utimaco’s general purpose Hardware Security ModuleExploit;Vendor Advisory
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