Zscaler Internet Access prior 6.2r Admin UI signature verification

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Zscaler Internet Access. It has been classified as critical. This impacts an unknown function of the component Admin UI. Performing a manipulation results in signature verification. This vulnerability is reported as CVE-2023-28801. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Zscaler Internet Access. This affects an unknown code block of the component Admin UI. The manipulation with an unknown input leads to a signature verification vulnerability. CWE is classifying the issue as CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An Improper Verification of Cryptographic Signature in the SAML authentication of the Zscaler Admin UI allows a Privilege Escalation.This issue affects Admin UI: from 6.2 before 6.2r.

The weakness was disclosed 08/31/2023. It is possible to read the advisory at help.zscaler.com. This vulnerability is uniquely identified as CVE-2023-28801 since 03/23/2023. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 6.2r eliminates this vulnerability. The upgrade is hosted for download at help.zscaler.com.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.6
VulDB Meta Temp Score: 8.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.6
CNA Vector (Zscaler, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Internet Access 6.2r

Timelineinfo

03/23/2023 🔍
08/31/2023 +160 days 🔍
08/31/2023 +0 days 🔍
09/27/2023 +27 days 🔍

Sourcesinfo

Advisory: help.zscaler.com
Status: Confirmed

CVE: CVE-2023-28801 (🔍)
GCVE (CVE): GCVE-0-2023-28801
GCVE (VulDB): GCVE-100-238467

Entryinfo

Created: 08/31/2023 19:42
Updated: 09/27/2023 14:51
Changes: 08/31/2023 19:42 (49), 09/27/2023 14:51 (12)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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