Telus Actiontec T2200H T2200H-31.128L.03 fileshare.cmd smbdUserid/smbdPasswd os command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Telus Actiontec T2200H T2200H-31.128L.03. This issue affects some unknown processing of the file fileshare.cmd. Executing a manipulation of the argument smbdUserid/smbdPasswd as part of Shell Metacharacter can lead to os command injection. This vulnerability appears as CVE-2018-15553. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Telus Actiontec T2200H T2200H-31.128L.03. It has been declared as critical. This vulnerability affects an unknown part of the file fileshare.cmd. The manipulation of the argument smbdUserid/smbdPasswd as part of a Shell Metacharacter leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

fileshare.cmd on Telus Actiontec T2200H T2200H-31.128L.03 devices allows OS Command Injection via shell metacharacters in the smbdUserid or smbdPasswd field.

The bug was discovered 08/14/2018. The weakness was presented 08/20/2018 as not defined mailinglist post (Full-Disclosure). The advisory is shared for download at seclists.org. This vulnerability was named CVE-2018-15553 since 08/19/2018. The exploitation appears to be easy. The attack can be initiated remotely. A single authentication is necessary for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/14/2018 🔍
08/19/2018 +4 days 🔍
08/19/2018 +0 days 🔍
08/20/2018 +1 days 🔍
08/20/2018 +0 days 🔍
06/25/2020 +675 days 🔍

Sourcesinfo

Advisory: seclists.org
Status: Not defined

CVE: CVE-2018-15553 (🔍)
GCVE (CVE): GCVE-0-2018-15553
GCVE (VulDB): GCVE-100-123028

Entryinfo

Created: 08/20/2018 08:30
Updated: 06/25/2020 07:35
Changes: 08/20/2018 08:30 (59), 06/25/2020 07:35 (1)
Complete: 🔍
Cache ID: 216::103

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