National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-12309 Detail

Current Description

A vulnerability in the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to conduct a HTTP response splitting attack. The vulnerability is due to the failure of the application or its environment to properly sanitize input values. An attacker could exploit this vulnerability by injecting malicious HTTP headers, controlling the response body, or splitting the response into multiple responses. An exploit could allow the attacker to perform cross-site scripting attacks, cross-user defacement, web cache poisoning, and similar exploits. Cisco Bug IDs: CSCvf16705.

Source:  MITRE
Description Last Modified:  11/16/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.3 MEDIUM
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N (V3 legend)
Impact Score: 1.4
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/101928 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039831 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-esa Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') (CWE-113)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:cisco:email_security_appliance_firmware:10.0.2-020:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:cisco:email_security_appliance_firmware:11.0.0-105:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-12309
NVD Published Date:
11/16/2017
NVD Last Modified:
12/06/2017