Cisco Linksys Router up to E4200 tmUnblock.cgi ttcp_ip privileges management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Cisco Linksys Router up to E4200. This impacts an unknown function of the file tmUnblock.cgi. Such manipulation of the argument ttcp_ip leads to privileges management. Moreover, an exploit is present. This vulnerability has historical importance owing to its background and reception. A worm is actively spreading and exploiting this vulnerability automatically. Restrictive firewalling should be applied.

Detailsinfo

A vulnerability was found in Cisco Linksys Router up to E4200 (Router Operating System) and classified as very critical. Affected by this issue is an unknown function of the file tmUnblock.cgi. The manipulation of the argument ttcp_ip with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability.

The bug was discovered 02/13/2013. The weakness was disclosed 02/17/2014 by Johannes Ullrich as File 125253 as not defined exploit (Packetstorm). The advisory is available at packetstormsecurity.com. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 03/30/2019). This vulnerability is assigned to T1068 by the MITRE ATT&CK project. This vulnerability has a historic impact due to its background and reception.

A public exploit has been developed in Python and been published even before and not after the advisory. The exploit is available at packetstormsecurity.com. It is declared as attacked. As 0-day the estimated underground price was around $25k-$100k. A worm is spreading, which is automatically exploiting this vulnerability.

Addressing this vulnerability is possible by firewalling tcp/8080. 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 X-Force (91196), SecurityFocus (BID 65585†) and Secunia (SA56994†). reddit.com is providing further details. The entry VDB-12069 is pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.2

VulDB Base Score: 9.8
VulDB Temp Score: 9.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Wormified: 🔍
Programming Language: 🔍
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Firewalling: 🔍

Timelineinfo

02/13/2013 🔍
02/13/2013 +0 days 🔍
02/13/2013 +0 days 🔍
02/13/2014 +365 days 🔍
02/17/2014 +4 days 🔍
02/22/2014 +5 days 🔍
03/30/2019 +1862 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: File 125253
Researcher: Johannes Ullrich
Status: Not defined

GCVE (VulDB): GCVE-100-12362
X-Force: 91196 - Multiple Linksys routers tmUnblock.cgi command execution, High Risk
SecurityFocus: 65585 - Multiple Linksys Devices Multiple Remote Code Execution Vulnerabilities
Secunia: 56994

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 02/22/2014 15:03
Updated: 03/30/2019 15:48
Changes: 02/22/2014 15:03 (53), 03/30/2019 15:48 (10)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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