Cisco ASA 9.3(3)/9.6(2) Web Interface User information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Cisco ASA 9.3(3)/9.6(2). This issue affects some unknown processing of the component Web Interface. Such manipulation leads to information disclosure (User). This vulnerability is referenced as CVE-2017-6752. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Cisco ASA 9.3(3)/9.6(2) (Firewall Software) and classified as problematic. Affected by this issue is an unknown code block of the component Web Interface. The manipulation with an unknown input leads to a information disclosure vulnerability (User). Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

A vulnerability in the web interface of the Cisco Adaptive Security Appliance (ASA) 9.3(3) and 9.6(2) could allow an unauthenticated, remote attacker to determine valid usernames. The attacker could use this information to conduct additional reconnaissance attacks. The vulnerability is due to the interaction between Lightweight Directory Access Protocol (LDAP) and SSL Connection Profile when they are configured together. An attacker could exploit the vulnerability by performing a username enumeration attack to the IP address of the device. An exploit could allow the attacker to determine valid usernames. Cisco Bug IDs: CSCvd47888.

The bug was discovered 08/02/2017. The weakness was published 08/07/2017 with Rapid7 (Website). The advisory is shared for download at quickview.cloudapps.cisco.com. This vulnerability is handled as CVE-2017-6752 since 03/09/2017. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability scanner Nessus provides a plugin with the ID 102499 (Cisco Adaptive Security Appliance Username Enumeration Information Disclosure Vulnerability (CSCvd47888)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (102499) and SecurityFocus (BID 100113†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: User
Class: Information disclosure / User
CWE: CWE-200 / CWE-284 / CWE-266
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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Nessus ID: 102499
Nessus Name: Cisco Adaptive Security Appliance Username Enumeration Information Disclosure Vulnerability (CSCvd47888)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800316
OpenVAS Name: Cisco Adaptive Security Appliance Username Enumeration Information Disclosure Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/09/2017 🔍
08/02/2017 +146 days 🔍
08/02/2017 +0 days 🔍
08/02/2017 +0 days 🔍
08/07/2017 +5 days 🔍
08/07/2017 +0 days 🔍
08/07/2017 +0 days 🔍
08/15/2017 +8 days 🔍
01/07/2021 +1241 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: quickview.cloudapps.cisco.com
Researcher: Kirk Hayes
Organization: Rapid7
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-6752 (🔍)
GCVE (CVE): GCVE-0-2017-6752
GCVE (VulDB): GCVE-100-104900
SecurityFocus: 100113 - Cisco Adaptive Security Appliance CVE-2017-6752 Information Disclosure Vulnerability
SecurityTracker: 1039057

Entryinfo

Created: 08/07/2017 16:40
Updated: 01/07/2021 12:46
Changes: 08/07/2017 16:40 (72), 11/04/2019 09:05 (7), 01/07/2021 12:40 (2), 01/07/2021 12:46 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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