Security readout for executives and security teams
Plain-English summary
Artica Proxy 4.30.000000 is reported to have an operating-system command injection issue. If an attacker can reach the affected endpoint, the impact could include running commands on the proxy server. The source bundle does not identify a vendor patch, CVSS score, or confirmed active exploitation.
Executive priority
Treat this as a high-priority exposure review if Artica Proxy is present. Command injection can become server compromise, but urgency depends on reachability and whether a fixed vendor release is available.
Technical view
CVE-2021-41739 describes OS command injection in Artica Proxy 4.30.000000, specifically in cyrus.events.php involving the GET parameter logs and POST parameter rp. The CVE metadata does not provide CVSS, CWE, CPE, or affected-version range beyond the stated version.
Likely exposure
Exposure is most likely where Artica Proxy 4.30.000000 is deployed and its web management or affected PHP endpoint is reachable by untrusted users or networks. Affected versions beyond 4.30.000000 are not established in the supplied sources.
Exploitation context
The CVE record says attackers can execute OS commands through the named endpoint and parameters. The bundle does not show CISA KEV listing, confirmed in-the-wild exploitation, or a reliable exploit prevalence assessment.
Researcher notes
The public record is sparse: no CVSS, CWE, CPE, vendor advisory, or patch details are included. Avoid broad version claims. Focus validation on confirmed Artica Proxy 4.30.000000 instances and endpoint reachability.
Mitigation direction
- Check Artica vendor guidance for fixed versions or official remediation.
- Upgrade or retire Artica Proxy 4.30.000000 if vendor guidance supports it.
- Restrict Artica Proxy administration access to trusted networks only.
- Block public access to the affected web management interface.
- Monitor for suspicious requests targeting cyrus.events.php.
Validation and detection
- Inventory Artica Proxy deployments and record exact versions.
- Confirm whether version 4.30.000000 is present in production or test environments.
- Verify the management interface is not internet-exposed.
- Review web logs for requests to cyrus.events.php involving logs or rp parameters.
- Check vendor release notes before declaring remediation complete.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-41739 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://medium.com/%40rootless724/artica-proxy-4-30-cyrus-events-php-rce-3aa2a868c695CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.