CyberSecBulletin
CVE-2024-0316NVD status: Modified

FireEye Endpoint Security: Improper Cleanup on Thrown Exception

CVE-2024-0316 is a high-severity improper cleanup on thrown exception vulnerability in FireEye Endpoint Security from FireEye, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected FireEye Endpoint Security versions: 5.2.0.958244. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.32% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of FireEye Endpoint Security you run against the affected versions below, and install the vendor's latest release.
  2. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
FireEyeFireEye Endpoint Security5.2.0.958244Not stated
FireeyeEndpoint Security5.2.0.958244Not stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
NoneNo data is disclosed.
Integrity
NoneNothing can be modified.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.16.8MediumCNA (incibe.es)
CVSS 3.17.5HighNVD

Official description

Improper cleanup vulnerability in exceptions thrown in FireEye Endpoint Security, affecting version 5.2.0.958244. This vulnerability could allow an attacker to send multiple request packets to the containment_notify/preview parameter, which could lead to a service outage.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Improper Cleanup on Thrown Exception

The product does not clean up its state or incorrectly cleans up its state when an exception is thrown.

How developers prevent this class of flaw

  • If one breaks from a loop or function by throwing an exception, make sure that cleanup happens or that you should exit the program. Use throwing exceptions sparsely.

More Improper Cleanup on Thrown Exception vulnerabilities (CWE-460)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Third-party and government advisories

Recent Improper Cleanup on Thrown Exception vulnerabilities

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