Auth bypass in Siemens Logo\!8 Bm
CVE-2019-10919
A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). Attackers with access to port 10005/tcp could perform device reconfigurations and obtain project files from the devices. The system manual recommends to protect access to this port. The security vulnerability could be exploited by an unauthenticated attacker with network access to port 10005/tcp. No user interaction is required to exploit this security vulnerability. The vulnerability impacts confidentiality, integrity, and availability of the device. At the time of advisory publication no public exploitation of this security vulnerability was known.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.027 (85.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- Siemens Logo\!8 Bm
- Siemens Logo\!8 Bm Firmware
- Siemens Logo! 8 Bm (Incl. Siplus Variants) — versions All versions < V8.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/108382 (VDB Entry, Third Party Advisory, vdb-entry)
- seclists.org/bugtraq/2019/May/73 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2019/May/45 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-542701.pdf (Vendor Advisory)
- packetstormsecurity.com/files/153123/Siemens-LOGO-8-Missing-Authentication.html (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-10919?
- CVE-2019-10919 is a critical-severity vulnerability in Siemens Logo\!8 Bm, classified under Missing Authentication for Critical Function. CVSS score: 9.4/10. Published 2019-05-14.
- How severe is CVE-2019-10919?
- Critical severity. CVSS v3 base score is 9.4 out of 10.
- Is CVE-2019-10919 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.