CVE-2017-17743 json
Improper input sanitization within the restricted administration shell on UCOPIA Wireless Appliance devices before 4.4.20, 5.0.x before 5.0…
published 2018-03-22 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-8895
- cvss
- 6.7
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 65%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- ucopia wireless_appliance_firmware 4.4.20, 5.0.19, 5.1.11
Exploit prediction
1.09% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- securite.intrinsec.com https://securite.intrinsec.com/2018/03/19/cve-2017-17743-ucopia-shell-escape/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.7 | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
securite.intrinsec.com
/2018/03/19/cve-2017-17743-ucopia-shell-escape/
exploit, third-party-advisory
Sources
- CVE List CVE-2017-17743
- NVD CVE-2017-17743
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.