CyberSecBulletin
CVE-2022-36174NVD status: Modified

Freshservice Agent: Improper Validation of Integrity Check Value

Published Updated By the CyberSecBulletin desk

CVE-2022-36174 is a high-severity improper validation of integrity check value vulnerability in Freshservice Agent from Freshworks, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists versions 2.11.0, 3.3.0, 4.2.0 as the first without the flaw, so updating Freshservice Agent to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.53% 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. Update Freshservice Agent to 2.11.0 or 3.3.0 or 4.2.0, whichever matches your release line, or a later version.
  2. Read the advisory on community.freshworks.com for workarounds and exact fixed builds.
  3. 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
FreshworksFreshservice Agentbefore 2.11.0; before 3.3.0; before 4.2.02.11.0, 3.3.0, 4.2.0

Version data comes from NVD's product matching. 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
HighSuccess depends on conditions outside the attacker's control.
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
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

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

Official description

FreshService Windows Agent < 2.11.0 and FreshService macOS Agent < 4.2.0 and FreshService Linux Agent < 3.3.0. are vulnerable to Broken integrity checking via the FreshAgent client and scheduled update service.

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

The underlying weakness: Improper Validation of Integrity Check Value

The product does not validate or incorrectly validates the integrity check values or checksums of a message.

How developers prevent this class of flaw

  • The protocol specification describes the algorithm used for calculating the checksum. It is then a matter of implementing the calculation and verifying that the calculated checksum and the received checksum match.

More Improper Validation of Integrity Check Value vulnerabilities (CWE-354)

Timeline

  1. CVE record published.
  2. Record last changed materially (score, affected products, status or references).

References

Technical write-ups (may include proof of concept)

Other vulnerabilities in Freshservice Agent

All Freshservice Agent vulnerabilities

Recent Improper Validation of Integrity Check Value vulnerabilities

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