CyberSecBulletin
CVE-2024-7402NVD status: Deferred

Netskope Client: Improper Validation of Integrity Check Value

Published Updated By the CyberSecBulletin desk

CVE-2024-7402 is a high-severity improper validation of integrity check value vulnerability in Netskope Client from Netskope, with a CVSS 4.0 base score of 7.0 out of 10. It can be exploited with local access to the system by an attacker with administrator privileges, without any action from a user. The record lists version 123.0.16, 126.0.9, 129.0.0 as the first without the flaw, so updating Netskope Client to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.11% 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 Netskope Client to 123.0.16, 126.0.9, 129.0.0 or a later version.
  2. Read the advisory on netskope.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
NetskopeNetskope Clientbefore 123.0.16, 126.0.9, 129.0.0123.0.16, 126.0.9, 129.0.0

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
LocalThe attacker needs local access or must trick a user into running something.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Attack requirements
PresentThe target must be in a specific state or configuration for the attack to work.
Privileges required
HighAdministrator-level access is required first.
User interaction
NoneNo action by a victim is required.
Confidentiality (vulnerable system)
LowLimited loss of confidentiality on the vulnerable system.
Integrity (vulnerable system)
HighSerious loss of integrity on the vulnerable system.
Availability (vulnerable system)
HighSerious loss of availability on the vulnerable system.
Confidentiality (other systems)
NoneNo loss of confidentiality on systems beyond the vulnerable one.
Integrity (other systems)
HighSerious loss of integrity on systems beyond the vulnerable one.
Availability (other systems)
HighSerious loss of availability on systems beyond the vulnerable one.

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. Scored by CNA (netskope.com).

Official description

Netskope has identified a potential gap in its agent (Netskope Client) in which a malicious insider can potentially tamper the Netskope Client configuration by performing MITM (Man-in-the-Middle) activity on the Netskope Client communication channel. A successful exploitation would require administrative privileges on the machine, and could result in temporarily altering the configuration of Netskope Client or permanently disabling or removing the agent from the machine.

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

References

Other vulnerabilities in Netskope Client

All Netskope Client vulnerabilities

Recent Improper Validation of Integrity Check Value vulnerabilities

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