CVE-2023-28807
Zscaler Internet Access SNI SNI Mismatch Information Disclosure
Description
In Zscaler Internet Access (ZIA) a mismatch between Connect Host and Client Hello's Server Name Indication (SNI) enables attackers to evade network security controls by hiding their communications within legitimate traffic.
INFO
Published Date :
Jan. 31, 2024, 8:15 p.m.
Last Modified :
Feb. 9, 2024, 4:30 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-28807.
| URL | Resource |
|---|---|
| https://help.zscaler.com/zia/configuring-advanced-settings#dns-optimization | Product |
| https://help.zscaler.com/zia/configuring-advanced-settings#domain-fronting | Product |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-28807 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-28807 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Feb. 09, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Changed Reference Type https://help.zscaler.com/zia/configuring-advanced-settings#dns-optimization No Types Assigned https://help.zscaler.com/zia/configuring-advanced-settings#dns-optimization Product Changed Reference Type https://help.zscaler.com/zia/configuring-advanced-settings#domain-fronting No Types Assigned https://help.zscaler.com/zia/configuring-advanced-settings#domain-fronting Product Added CWE NIST CWE-295 Added CPE Configuration OR *cpe:2.3:a:zscaler:secure_internet_and_saas_access:*:*:*:*:*:*:*:* versions up to (excluding) 6.2r.290 -
CVE Received by [email protected]
Jan. 31, 2024
Action Type Old Value New Value Added Description In Zscaler Internet Access (ZIA) a mismatch between Connect Host and Client Hello's Server Name Indication (SNI) enables attackers to evade network security controls by hiding their communications within legitimate traffic. Added Reference Zscaler, Inc. https://help.zscaler.com/zia/configuring-advanced-settings#domain-fronting [No types assigned] Added Reference Zscaler, Inc. https://help.zscaler.com/zia/configuring-advanced-settings#dns-optimization [No types assigned] Added CWE Zscaler, Inc. CWE-295 Added CVSS V3.1 Zscaler, Inc. AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-28807 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-28807
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.14374
percentile