VulnerabilityModified

CVE-2021-45034

HIGH 7.5EPSS 2.31%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.31%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions < V16.20), CP-8000 MASTER MODULE WITH I/O -40/+70°C (All versions < V16.20), CP-8021 MASTER MODULE (All versions < V16.20), CP-8022 MASTER MODULE WITH GPRS (All versions < V16.20). The web server of the affected system allows access to logfiles and diagnostic data generated by a privileged user. An unauthenticated attacker could access the files by knowing the corresponding download links.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS: 2.31% probability · 82th percentile
CISA KEV: Not listed
Weakness: CWE-284, CWE-532
Affected: siemens/cp-8000 master module with i\/o -25\/\+70 firmware · siemens/cp-8000 master module with i\/o -40\/\+70 firmware · siemens/cp-8021 master module firmware · siemens/cp-8022 master module with gprs firmware
Source: productcert@siemens.com

References

http://packetstormsecurity.com/files/166743/Siemens-A8000-CP-8050-CP-8031-SICAM-WEB-Missing-File-Download-Missing-Authentication.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2022/Apr/20Exploit, Mailing List, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-324998.pdfPatch, Vendor Advisory
http://packetstormsecurity.com/files/166743/Siemens-A8000-CP-8050-CP-8031-SICAM-WEB-Missing-File-Download-Missing-Authentication.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2022/Apr/20Exploit, Mailing List, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-324998.pdfPatch, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.