CVE-2024-5217KEV · OVERDUECWE-184

Incomplete Input Validation in GlideExpression Script

Critical · published July 10, 2024

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.2. It is confirmed in active exploitation. It sits in the 100.0th percentile for exploit probability.

796
days past CISA
deadline
CVSS v4.0
9.2
EPSS
100%
Percentile
100.0
In the wild
Confirmed
What it is

🚨 A devastating input validation flaw lurks in ServiceNow that lets anyone execute code remotely—like giving a stranger the ability to swipe your house keys! 🔥 Think of this vulnerability as a hotel that allows unauthorized guests to check into any room without a reservation. In this case, the unauthorized guests are attackers, and they can make themselves at home in your system without anyone batting an eye. If exploited, this vulnerability could lead to attackers running malicious code on your Now Platform instance, potentially accessing sensitive data, altering configurations, or even taking total control. It's not just a breach; it’s a full-blown invasion!

Put simply

Think of this vulnerability as a hotel that allows unauthorized guests to check into any room without a reservation. In this case, the unauthorized guests are attackers, and they can make themselves at home in your system without anyone batting an eye. This input validation vulnerability allows unauthenticated users to execute arbitrary code within the Now Platform, compromising the integrity and security of the system.

What to do

If exploited, this vulnerability could lead to attackers running malicious code on your Now Platform instance, potentially accessing sensitive data, altering configurations, or even taking total control. It's not just a breach; it’s a full-blown invasion! Immediately apply the security patches and hot fixes released during the June 2024 patching cycle to your instance. As a best practice, review any other relevant security measures to bolster your defenses. You've got this! By acting quickly, you can thwart potential attackers and keep your system secure. 🛡️

The record
Technical detail
CVSS v4.0
9.2 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.99628 · 100.0th percentile
Weakness
CWE-184 · Incomplete List of Disallowed Inputs
Published
2024-07-10T16:28Z
KEV added
2024-07-29 · due 2024-08-19
EPSS history
Timeline
  • 29 JUL 00:00Z
    Added to CISA KEV — remediate by Aug 19
    kev
  • 10 JUL 16:28Z
    Incomplete Input Validation in GlideExpression Script
    cvelistv5