Session hijacking in Siemens LOGO!8 BM



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-12734
CWE-ID CWE-384
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 LOGO!
Hardware solutions / Firmware

Vendor Siemens

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Session hijacking

EUVDB-ID: #VU8047

Risk: Low

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2017-12734

CWE-ID: CWE-384 - Session Fixation

Exploit availability: No

Description

The vulnerability allows a remote attacker to hijack the target user's session.

The weakness exists due to improper access control. A remote attacker with network access to the integrated web server on port 80/tcp can obtain the session ID of an active user session.

Mitigation

Update to version 1.81.2.

Vulnerable software versions

LOGO!: All versions

CPE2.3 External links

https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-087240.pdf


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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