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PatchSiren cyber security CVE debrief

CVE-2024-21893 Ivanti CVE debrief

CVE-2024-21893 is a server-side request forgery (SSRF) vulnerability affecting Ivanti Connect Secure, Policy Secure, and Neurons. CISA added the issue to its Known Exploited Vulnerabilities catalog on 2024-01-31 and marked it as having known ransomware campaign use. CISA’s required action is to apply vendor mitigations per Ivanti’s instructions, or discontinue use of the product if mitigations are unavailable.

Vendor
Ivanti
Product
Connect Secure, Policy Secure, and Neurons
CVSS
HIGH 8.2
CISA KEV
Listed
Original CVE published
2024-01-31
Original CVE updated
2024-01-31
Advisory published
2024-01-31
Advisory updated
2024-01-31

Who should care

Security and infrastructure teams responsible for Ivanti Connect Secure, Policy Secure, or Neurons deployments should treat this as urgent, especially teams that track CISA KEV items, externally reachable remote-access infrastructure, and ransomware exposure risk.

Technical summary

The supplied corpus identifies CVE-2024-21893 as an SSRF vulnerability in Ivanti Connect Secure, Policy Secure, and Neurons. The most actionable evidence is CISA’s KEV listing, which records dateAdded 2024-01-31, dueDate 2024-02-02, and knownRansomwareCampaignUse: Known. No CVSS score or deeper exploit mechanics are included in the provided source set.

Defensive priority

Critical

Recommended defensive actions

  • Inventory all Ivanti Connect Secure, Policy Secure, and Neurons deployments in your environment.
  • Apply mitigations exactly as directed in the linked Ivanti vendor guidance.
  • If mitigations are not available for a deployment, discontinue use of the product per CISA guidance.
  • Track the CISA KEV due date (2024-02-02) as the minimum remediation deadline for affected assets.
  • Validate that your remediation plan is aligned with the official CISA KEV entry and the linked Ivanti advisory.

Evidence notes

This debrief is based only on the supplied CVE record, CISA KEV metadata, and official links. The corpus confirms that CISA listed CVE-2024-21893 on 2024-01-31, sets a remediation due date of 2024-02-02, and marks known ransomware campaign use as Known. The supplied material does not include a CVSS score, exploit details, or vendor patch specifics beyond the instruction to follow vendor mitigation guidance.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-21893 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-21893

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2024-21893 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-21893

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.