CVE-2018-16994
Incorrect handling of a request with non-standard symbols allows remote attackers to initiate a complete lock up of the bus coupler.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered on PHOENIX CONTACT AXL F BK PN <=1.0.4, AXL F BK ETH <= 1.12, and AXL F BK ETH XC <= 1.11 devices and Bosch Rexroth S20-ETH-BK and Rexroth S20-PN-BK+ (the S20-PN-BK+/S20-ETH-BK fieldbus couplers sold by Bosch Rexroth contain technology from Phoenix Contact). Incorrect handling of a request with non-standard symbols allows remote attackers to initiate a complete lock up of the bus coupler. Authentication of the request is not required.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.57% probability · 74th percentile
- CISA KEV
- Not listed
- Affected
- phoenixcontact/axl f bk pn firmware · phoenixcontact/axl f bk eth firmware · phoenixcontact/axl f bk eth xc firmware
- Source
- cve@mitre.org
References
- https://psirt.bosch.com/security-advisories/bosch-sa-645125.html
- https://www.phoenixcontact.com/assets/downloads_ed/local_pc/web_dwl_technical_info/Security_Advirory_CVE-2018-16994.pdfVendor Advisory
- https://psirt.bosch.com/security-advisories/bosch-sa-645125.html
- https://www.phoenixcontact.com/assets/downloads_ed/local_pc/web_dwl_technical_info/Security_Advirory_CVE-2018-16994.pdfVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.