CVE-2023-43208
NextGen Healthcare — NextGen Healthcare Mirth Connect Deserialization of Untrusted Data Vulnerability
NextGen Healthcare · CWE-78 — Operating system command injection | CWE-502 — Deserialization of untrusted data · in CISA KEV since 2024-05-20
EVRS 89 of 100 Immediate
Out-of-Band / Urgent Remediation
Rank 163 of 2,960 tracked
Why it scores 89
Evidence available: 6 of 7 signalsListed in the CISA KEV catalog, and associated with known ransomware campaigns.
- CISA KEVApplied
- RansomwareApplied
- Vendor exploitationDid not apply
- EPSSApplied
- Microsoft Exploitability IndexNot applicable
- Pre-patch disclosureNo data
- KEV recencyDid not apply
- CVSSApplied
The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data
Fix
Patch or fixed version identifiedCISA required action
- This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see
- nvd.nist.gov/…/CVE-2023-43208
Fixed in
mirth connect: update to 4.4.1 or later
Affected versions
- mirth connect
< 4.4.1
Remediation
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Fixed versions from NVD.
Evidence
Each value with its source| Measure | Value | Source |
|---|---|---|
| CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. | 9.8 | NVD |
| FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. | 0.827 (99.67th pctl) | FIRST EPSS |
| Actively exploitedWhether a source of record has confirmed attacks using it in the wild. | Confirmed | CISA KEV |
| Ransomware campaign useWhether CISA has seen ransomware operators use it. | Known | CISA KEV |
| CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. | 2024-06-10 · KEV since 2024 · listed over a year | CISA KEV |
| Public exploit moduleA module existing is not the same as active exploitation. | Public module exists | Metasploit |
| EUVD cross-referenceENISA's record: CVSS 9.8 (v3.1), assigned by mitre. | Listed | ENISA EUVD |
Description
NVDNextGen Healthcare Mirth Connect before version 4.4.1 is vulnerable to unauthenticated remote code execution. Note that this vulnerability is caused by the incomplete patch of CVE-2023-37679.
What CISA says to do
- This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see
- nvd.nist.gov/…/CVE-2023-43208
Public module
Metasploit lists a public excellent-rank module for this CVE: Mirth Connect Deserialization RCE (multi/http/mirth_connect_cve_2023_43208). A module existing is not the same as active exploitation; see metasploit.com.