High severity · published Aug 6, 2024
CVE-2024-23456
Signature validation issue leads to Anti-Tampering bypass
7.5
CVSS
0.2%
EPSS
No
On KEV
Description
Anti-tampering can be disabled under certain conditions without signature validation. This affects Zscaler Client Connector <4.2.0.190 with anti-tampering enabled.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CC
Client Connector · Zscaler
before 4.2.0.190 · source: vendor, NVD, CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-23456
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-23456
Vendor Advisory
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=windows&applicable_version=4.2.0.190
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