Auth bypass in Ucopia Wireless Appliance
CVE-2017-17743
Improper input sanitization within the restricted administration shell on UCOPIA Wireless Appliance devices before 4.4.20, 5.0.x before 5.0.19, and 5.1.x before 5.1.11 allows authenticated remote attackers to escape the shell and escalate their privileges by uploading a .bashrc file containing the /bin/sh string. In some situations, authentication can be achieved via the bhu85tgb default password for the admin account.
Vulnerability class: Broken Authentication
EPSS: 0.011 (63.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Ucopia Wireless_appliance
- Ucopia Wireless_appliance_firmware
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2017-17743?
- CVE-2017-17743 is a medium-severity vulnerability in Ucopia Wireless Appliance, classified under Improper Authentication. CVSS score: 6.7/10. Published 2018-03-22.
- How severe is CVE-2017-17743?
- Medium severity. CVSS v3 base score is 6.7 out of 10.