CVE-2024-5217
Published: July 29, 2024
Official Description
ServiceNow Washington DC, Vancouver, and earlier Now Platform releases contain an incomplete list of disallowed inputs vulnerability in the GlideExpression script. An unauthenticated user could exploit this vulnerability to execute code remotely.
CISA KEV Advisory
ServiceNow Incomplete List of Disallowed Inputs Vulnerability
ServiceNow Washington DC, Vancouver, and earlier Now Platform releases contain an incomplete list of disallowed inputs vulnerability in the GlideExpression script. An unauthenticated user could exploit this vulnerability to execute code remotely.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Risk Analysis
ServiceNow Washington DC, Vancouver, and earlier Now Platform releases contain an incomplete list of disallowed inputs in the GlideExpression script, enabling unauthenticated remote code execution. With an EPSS score of 0.94108 and confirmed exploitation by CISA, this is a critical vulnerability with a high likelihood of active exploitation.
This vulnerability is actively being exploited in the wild. An unauthenticated user can remotely execute code on affected ServiceNow instances.
Apply the latest security updates and patches for ServiceNow Now Platform releases. Implement input validation and regularly audit custom scripts for vulnerabilities.
Technical Analysis
CVE-2024-5217 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2024-5217 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2024-5217 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1