Cisco Secure Access Control System up to 5.7 ACS Report input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Cisco Secure Access Control System up to 5.7. Affected is an unknown function of the component ACS Report. Executing a manipulation can lead to input validation. This vulnerability is tracked as CVE-2018-0253. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Cisco Secure Access Control System up to 5.7 (Network Management Software) and classified as critical. This vulnerability affects an unknown function of the component ACS Report. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in the ACS Report component of Cisco Secure Access Control System (ACS) could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected system. Commands executed by the attacker are processed at the targeted user's privilege level. The vulnerability is due to insufficient validation of the Action Message Format (AMF) protocol. An attacker could exploit this vulnerability by sending a crafted AMF message that contains malicious code to a targeted user. A successful exploit could allow the attacker to execute arbitrary commands on the ACS device. This vulnerability affects all releases of Cisco Secure ACS prior to Release 5.8 Patch 7. Cisco Bug IDs: CSCve69037.

The bug was discovered 05/02/2018. The weakness was disclosed 05/02/2018 by Mikhail Klyuchnikov with Positive Technologies as cisco-sa-20180502-acs1 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2018-0253 since 11/27/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 110399 (Cisco Secure Access Control (cisco-sa-20180502-acs1)), 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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316256 (Cisco Secure Access Control System Remote Code Execution Vulnerability (cisco-sa-20180502-acs1)).

Upgrading to version 5.8 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (110399) and SecurityFocus (BID 104075†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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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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Nessus ID: 110399
Nessus Name: Cisco Secure Access Control (cisco-sa-20180502-acs1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: Secure Access Control System 5.8

Timelineinfo

11/27/2017 🔍
05/02/2018 +155 days 🔍
05/02/2018 +0 days 🔍
05/02/2018 +0 days 🔍
05/02/2018 +0 days 🔍
05/02/2018 +0 days 🔍
05/03/2018 +1 days 🔍
06/07/2018 +35 days 🔍
03/08/2023 +1735 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20180502-acs1
Researcher: Mikhail Klyuchnikov
Organization: Positive Technologies
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-0253 (🔍)
GCVE (CVE): GCVE-0-2018-0253
GCVE (VulDB): GCVE-100-117292
SecurityFocus: 104075 - Cisco Secure Access Control System CVE-2018-0253 Remote Code Execution Vulnerability
SecurityTracker: 1040808

Entryinfo

Created: 05/03/2018 08:35
Updated: 03/08/2023 14:10
Changes: 05/03/2018 08:35 (71), 02/01/2020 21:29 (7), 03/08/2023 14:10 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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