Vulnerability in Cisco Asr 5000
CVE-2021-1145
A vulnerability in the Secure FTP (SFTP) of Cisco StarOS for Cisco ASR 5000 Series Routers could allow an authenticated, remote attacker to read arbitrary files on an affected device. To exploit this vulnerability, the attacker would need to have valid credentials on the affected device. The vulnerability is due to insecure handling of symbolic links. An attacker could exploit this vulnerability by sending a crafted SFTP command to an affected device. A successful exploit could allow the attacker to read arbitrary files on the affected device.
EPSS: 0.013 (67.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-1145?
- CVE-2021-1145 is a medium-severity vulnerability in Cisco Asr 5000, classified under UNIX Symbolic Link (Symlink) Following. CVSS score: 6.5/10. Published 2021-01-13.
- How severe is CVE-2021-1145?
- Medium severity. CVSS v3 base score is 6.5 out of 10.