CVE-2018-16994

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 74%
VendorProductVersion
phoenixcontactaxl_f_bk_pn_firmware
𝑥
≤ 1.0.4
phoenixcontactaxl_f_bk_eth_firmware
𝑥
≤ 1.12
phoenixcontactaxl_f_bk_eth_xc_firmware
𝑥
≤ 1.11
𝑥
= Vulnerable software versions
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.pdf
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.pdf