CVE-2024-20392
Cisco Secure Email Gateway HTTP Response Splitting Vulnerability
Description
A vulnerability in the web-based management API of Cisco AsyncOS Software for Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to conduct an HTTP response splitting attack. This vulnerability is due to insufficient input validation of some parameters that are passed to the web-based management API of the affected system. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to perform cross-site scripting (XSS) attacks, resulting in the execution of arbitrary script code in the browser of the targeted user, or could allow the attacker to access sensitive, browser-based information.
INFO
Published Date :
May 15, 2024, 6:15 p.m.
Last Modified :
Aug. 6, 2025, 4:48 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.7
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2024-20392
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
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-2024-20392.
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-2024-20392 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-20392 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.
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Initial Analysis by [email protected]
Aug. 06, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Added CPE Configuration AND OR *cpe:2.3:o:cisco:asyncos:13.0.0-392:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:13.0.5-007:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:13.5.1-277:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:13.5.4-038:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:14.0.0-698:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:14.2.0-620:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:11.0.3-238:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:11.1.0-069:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:11.1.0-128:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:12.0.0-419:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:12.1.0-071:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:12.1.0-087:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:12.1.0-089:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:14.2.1-020:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:14.3.0-032:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:15.0.0-104:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:15.0.1-030:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:15.5.0-048:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:12.5.0-066:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:12.5.3-041:*:*:*:*:*:*:* *cpe:2.3:o:cisco:asyncos:12.5.4-041:*:*:*:*:*:*:* OR cpe:2.3:a:cisco:secure_email_gateway_virtual_appliance_c100v:-:*:*:*:*:*:*:* cpe:2.3:a:cisco:secure_email_gateway_virtual_appliance_c300v:-:*:*:*:*:*:*:* cpe:2.3:a:cisco:secure_email_gateway_virtual_appliance_c600v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:secure_email_gateway_c195:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:secure_email_gateway_c395:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:secure_email_gateway_c695:-:*:*:*:*:*:*:* Added Reference Type CVE: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-http-split-GLrnnOwS Types: Vendor Advisory Added Reference Type Cisco Systems, Inc.: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-http-split-GLrnnOwS Types: Vendor Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-http-split-GLrnnOwS -
CVE Received by [email protected]
May. 15, 2024
Action Type Old Value New Value Added Description A vulnerability in the web-based management API of Cisco AsyncOS Software for Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to conduct an HTTP response splitting attack. This vulnerability is due to insufficient input validation of some parameters that are passed to the web-based management API of the affected system. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to perform cross-site scripting (XSS) attacks, resulting in the execution of arbitrary script code in the browser of the targeted user, or could allow the attacker to access sensitive, browser-based information. Added Reference Cisco Systems, Inc. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-http-split-GLrnnOwS [No types assigned] Added CWE Cisco Systems, Inc. CWE-113 Added CVSS V3.1 Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:R/S:C/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-2024-20392 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-2024-20392
weaknesses.