NVD Vulnerability Detail
Search Exploit, PoC
CVE-2021-23842
Summary

Communication to the AMC2 uses a state-of-the-art cryptographic algorithm for symmetric encryption called Blowfish. An attacker could retrieve the key from the firmware to decrypt network traffic between the AMC2 and the host system. Thus, an attacker can exploit this vulnerability to decrypt and modify network traffic, decrypt and further investigate the device\'s firmware file, and change the device configuration. The attacker needs to have access to the local network, typically even the same subnet.

Publication Date Jan. 20, 2022, 6:15 a.m.
Registration Date Jan. 20, 2022, 10 a.m.
Last Update Nov. 21, 2024, 2:51 p.m.
CVSS3.1 : HIGH
スコア 7.1
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
攻撃元区分(AV) ローカル
攻撃条件の複雑さ(AC)
攻撃に必要な特権レベル(PR)
利用者の関与(UI) 不要
影響の想定範囲(S) 変更なし
機密性への影響(C)
完全性への影響(I)
可用性への影響(A) なし
CVSS2.0 : LOW
Score 3.6
Vector AV:L/AC:L/Au:N/C:P/I:P/A:N
攻撃元区分(AV) ローカル
攻撃条件の複雑さ(AC)
攻撃前の認証要否(Au) 不要
機密性への影響(C)
完全性への影響(I)
可用性への影響(A) なし
Get all privileges. いいえ
Get user privileges いいえ
Get other privileges いいえ
User operation required いいえ
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:o:bosch:amc2_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:bosch:amc2:-:*:*:*:*:*:*:*
Configuration2 or higher or less more than less than
cpe:2.3:a:bosch:access_management_system:3.0:*:*:*:*:*:*:*
Configuration3 or higher or less more than less than
cpe:2.3:a:bosch:access_professional_edition:*:*:*:*:*:*:*:* 3.8.0
Configuration4 or higher or less more than less than
cpe:2.3:a:bosch:building_integration_system:*:*:*:*:*:*:*:* 4.9.1
Related information, measures and tools
Common Vulnerabilities List