CISA KEV 정보
| 취약점명 | Veritas Backup Exec Agent File Access Vulnerability |
|---|---|
| 설명 | Veritas Backup Exec (BE) Agent contains a file access vulnerability that could allow an attacker to specially craft input parameters on a data management protocol command to access files on the BE Agent machine. |
| 조치사항 | Apply updates per vendor instructions. |
| 랜섬웨어 캠페인 악용 | Known |
| CWE | CWE-287 |
| 등록일 (KEV) | 2023-04-07 |
| 조치 기한 | 2023-04-28 |
| 추가 참고 | https://www.veritas.com/support/en_US/security/VTS21-001; https://nvd.nist.gov/vuln/detail/CVE-2021-27876 |
NVD 상세 정보
CVSS v3.1: 8.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NCVSS v2.0: 7.5
AV:N/AC:L/Au:S/C:C/I:P/A:N설명: An issue was discovered in Veritas Backup Exec before 21.2. The communication between a client and an Agent requires successful authentication, which is typically completed over a secure TLS communication. However, due to a vulnerability in the SHA Authentication scheme, an attacker is able to gain unauthorized access and complete the authentication process. Subsequently, the client can execute data management protocol commands on the authenticated connection. By using crafted input parameters in one of these commands, an attacker can access an arbitrary file on the system using System privileges.
참조
- http://packetstormsecurity.com/files/168506/Veritas-Backup-Exec-Agent-Remote-Code-Execution.html [Exploit, Third Party Advisory, VDB Entry]
- https://www.veritas.com/content/support/en_US/security/VTS21-001#issue2 [Vendor Advisory]
- http://packetstormsecurity.com/files/168506/Veritas-Backup-Exec-Agent-Remote-Code-Execution.html [Exploit, Third Party Advisory, VDB Entry]
- https://www.veritas.com/content/support/en_US/security/VTS21-001#issue2 [Vendor Advisory]
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27876 [US Government Resource]
This product uses the NVD API but is not endorsed or certified by the NVD.