CVE-2023-28503 in the critical feed json
Authentication bypass in UniRPC's udadmin service
published 2023-03-29 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-32173
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 60.7%
- EPSS 60.7% chance of exploitation in 30 days, percentile 99.1%
- public exploits
- 1
- Metasploit
Summary
Rocket Software UniData versions prior to 8.2.4 build 3003 and UniVerse versions prior to 11.3.5 build 1001 or 12.2.1 build 2002 suffer from an authentication bypass vulnerability, where a special username with a deterministic password can be leveraged to bypass authentication checks and execute OS commands as the root user.
Patch / fix
- Rocket Software UniData 8.2.43.3003
- Rocket Software UniVerse 11.3.5.1001, 12.2.1.2002
Timeline
- Published
- First public exploit (Metasploit exploit/linux/misc/unidata_udadmin_auth_bypass)
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 20 mo ago
Exploit prediction
60.66% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/linux/misc/unidata_udadmin_auth_bypass Rocket Software Unidata udadmin_server Authentication Bypass metasploit exploit, excellent rank, 2023-03-30
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Rocket Software UniData
- Rocket Software UniVerse
Classification
References
Sources
- CVE List CVE-2023-28503
- NVD CVE-2023-28503
Fencer Vulns 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.