製品・ソフトウェアに関する情報
Foscam の r2c application ファームウェアおよび r2c system ファームウェアにおける Time-of-check Time-of-use (TOCTOU) 競合状態の脆弱性
Title Foscam の r2c application ファームウェアおよび r2c system ファームウェアにおける Time-of-check Time-of-use (TOCTOU) 競合状態の脆弱性
Summary

Foscam の r2c application ファームウェアおよび r2c system ファームウェアには、Time-of-check Time-of-use (TOCTOU) 競合状態の脆弱性が存在します。

Possible impacts 情報を取得される、情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。
Solution

参考情報を参照して適切な対策を実施してください。

Publication Date April 21, 2022, midnight
Registration Date July 28, 2023, 5:04 p.m.
Last Update July 28, 2023, 5:04 p.m.
CVSS3.0 : 警告
Score 6.6
Vector CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS2.0 : 危険
Score 8.5
Vector AV:N/AC:M/Au:S/C:C/I:C/A:C
Affected System
Foscam
r2c application ファームウェア 2.91.2.66 およびそれ以前
r2c system ファームウェア 1.13.1.6 およびそれ以前
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
その他
Change Log
No Changed Details Date of change
1 [2023年07月28日]
  掲載
July 28, 2023, 5:04 p.m.

NVD Vulnerability Information
CVE-2022-28743
Summary

Time-of-check Time-of-use (TOCTOU) Race Condition vulerability in Foscam R2C IP camera running System FW <= 1.13.1.6, and Application FW <= 2.91.2.66, allows an authenticated remote attacker with administrator permissions to execute arbitrary remote code via a malicious firmware patch. The impact of this vulnerability is that the remote attacker could gain full remote access to the IP camera and the underlying Linux system with root permissions. With root access to the camera's Linux OS, an attacker could effectively change the code that is running, add backdoor access, or invade the privacy of the user by accessing the live camera stream.

Publication Date April 22, 2022, 4:15 a.m.
Registration Date April 22, 2022, 10 a.m.
Last Update Nov. 21, 2024, 3:57 p.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:o:foscam:r2c_application_firmware:*:*:*:*:*:*:*:* 2.91.2.66
cpe:2.3:o:foscam:r2c_system_firmware:*:*:*:*:*:*:*:* 1.13.1.6
execution environment
1 cpe:2.3:h:foscam:r2c:-:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List