VDB-97196 · CVE-2017-3839 · BID 96236

Cisco Secure Access Control System 5.8(2.5) Web User Interface input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.8$5k-$25k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Cisco Secure Access Control System 5.8(2.5). Affected by this vulnerability is an unknown functionality of the component Web User Interface. Such manipulation leads to input validation. This vulnerability is documented as CVE-2017-3839. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Cisco Secure Access Control System 5.8(2.5) (Network Management Software) and classified as critical. Affected by this issue is an unknown functionality of the component Web User Interface. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An XML External Entity vulnerability in the web-based user interface of the Cisco Secure Access Control System (ACS) could allow an unauthenticated, remote attacker to have read access to part of the information stored in the affected system. More Information: CSCvc04845. Known Affected Releases: 5.8(2.5).

The bug was discovered 02/15/2017. The weakness was released 02/22/2017 with Cisco as cisco-sa-20170215-acs1 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2017-3839 since 12/21/2016. The exploitation is known to be easy. 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 current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 12/25/2024).

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316077 (Cisco Secure Access Control System Multiple vulnerabilities).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at SecurityFocus (BID 96236†) and SecurityTracker (ID 1037836†). Entries connected to this vulnerability are available at VDB-97195, VDB-97197 and VDB-97198. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.8

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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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OpenVAS ID: 800316
OpenVAS Name: Cisco Secure Access Control System XML External Entity Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/21/2016 🔍
02/15/2017 +56 days 🔍
02/15/2017 +0 days 🔍
02/21/2017 +6 days 🔍
02/22/2017 +1 days 🔍
02/22/2017 +0 days 🔍
12/25/2024 +2863 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20170215-acs1
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-3839 (🔍)
GCVE (CVE): GCVE-0-2017-3839
GCVE (VulDB): GCVE-100-97196
SecurityFocus: 96236 - Cisco Secure Access Control System XML External Entity Information Disclosure Vulnerability
OSVDB: - CVE-2017-3839 - Cisco - Secure ACS - XML External Entity Issue
SecurityTracker: 1037836

See also: 🔍

Entryinfo

Created: 02/22/2017 12:01
Updated: 12/25/2024 19:42
Changes: 02/22/2017 12:01 (68), 08/16/2020 13:01 (6), 12/25/2024 19:42 (16)
Complete: 🔍
Cache ID: 216:C42:103

Once again VulDB remains the best source for vulnerability data.

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