CVE-2017-12477
It was discovered that the bpserverd proprietary protocol in Unitrends Backup (UB) before 10.0.0, as invoked through xinetd, has an issue…
- 9.8CriticalCVSS base score
- 68.2%Exploitation in 30 daysEPSS · top 0.7% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 3Public exploitsMetasploit, Nuclei and Exploit-DB
Description
It was discovered that the bpserverd proprietary protocol in Unitrends Backup (UB) before 10.0.0, as invoked through xinetd, has an issue in which its authentication can be bypassed. A remote attacker could use this issue to execute arbitrary commands with root privilege on the target system.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module and 2 Exploit-DB entries for it. A reference of the record is tagged as an exploit.
Show the exploits4
Metasploit modules1 module
- Unitrends UEB bpserverd authentication bypass RCE (Metasploit module) (opens in a new tab)
exploit/linux/misc/ueb9_bpserverdRank excellentdisclosed 8 Aug 2017
Exploit-DB2 entries
- Unitrends UEB 9 - bpserverd Authentication Bypass Remote Command Execution (Metasploit) (Exploit-DB entry) (opens in a new tab)
EDB-ID 43031remote, linux_x86published 23 Oct 2017Verified
- Unitrends UEB 9.1 - 'Unitrends bpserverd' Remote Command Execution (Exploit-DB entry) (opens in a new tab)
EDB-ID 42957remote, linuxpublished 8 Aug 2017Verified
References tagged exploit1 reference
- 43031 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
- 3 days later
· 3 days later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 68.2% · top 0.7% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
n/a
- affected n/a
References
2
- https://support.unitrends.com/UnitrendsBackup/s/article/000005755 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 43031 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2017-4049 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-12477)Record last updated .