CVE-2016-7987 : An issue was discovered in Siemens ETA4 firmware (all versions prior to Revision 08) of the SM-2558 extension module for

An issue was discovered in Siemens ETA4 firmware (all versions prior to Revision 08) of the SM-2558 extension module for: SICAM AK, SICAM TM 1703, SICAM BC 1703, and SICAM AK 3. Specially crafted packets sent to Port 2404/TCP could cause the affected device to go into defect mode. A cold start might be required to recover the system, a Denial-of-Service Vulnerability.

Published 2017-02-13 21:59:01

Updated 2017-03-14 19:59:09

Source ICS-CERT

View at NVD, CVE.org

Vulnerability category: Denial of service

Exploit prediction scoring system (EPSS) score for CVE-2016-7987

EPSS FAQ

0.08%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 34 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-7987

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.8	HIGH	AV:N/AC:L/Au:N/C:N/I:N/A:C	10.0	6.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

References for CVE-2016-7987

http://www.securityfocus.com/bid/93832

Multiple Siemens SICAM RTU Products CVE-2016-7987 Denial of Service Vulnerability
Third Party Advisory;VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-16-299-01

Siemens SICAM RTU Devices Denial-of-Service Vulnerability | CISA
Mitigation;Third Party Advisory;US Government Resource

Products affected by CVE-2016-7987

Siemens » Eta4 Firmware
Versions up to, including, (<=) 07
cpe:2.3:o:siemens:eta4_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Siemens » Sicam Ak » Version: N/A
When used together with: Siemens » Sicam Ak 3 » Version: N/A
When used together with: Siemens » Sicam Bc 1703 » Version: N/A
When used together with: Siemens » Sicam Tm 1703 » Version: N/A
Siemens » Eta2 Firmware
Versions up to, including, (<=) 11.0
cpe:2.3:o:siemens:eta2_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Siemens » Sicam Ak » Version: N/A
When used together with: Siemens » Sicam Bc » Version: N/A
When used together with: Siemens » Sicam Tm » Version: N/A

Vulnerability Details : CVE-2016-7987

Exploit prediction scoring system (EPSS) score for CVE-2016-7987

CVSS scores for CVE-2016-7987

CWE ids for CVE-2016-7987

References for CVE-2016-7987

Products affected by CVE-2016-7987