SonicWALL Secure Remote Access Server up to 8.1.0.2-14sv extensionsettings scriptname command injection
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.0 | $0-$5k | 0.00 |
A vulnerability classified as critical was found in SonicWALL Secure Remote Access Server up to 8.1.0.2-14sv (Remote Access Software). Affected by this vulnerability is some unknown functionality of the file /cgi-bin/extensionsettings. The manipulation of the argument scriptname
with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
The SonicWall Secure Remote Access server (version 8.1.0.2-14sv) is vulnerable to a Remote Command Injection vulnerability in its web administrative interface. This vulnerability occurs in the 'extensionsettings' CGI (/cgi-bin/extensionsettings) component responsible for handling some of the server's internal configurations. The CGI application doesn't properly escape the information it's passed when processing a particular multi-part form request involving scripts. The filename of the 'scriptname' variable is read in unsanitized before a call to system() is performed - allowing for remote command injection. Exploitation of this vulnerability yields shell access to the remote machine under the nobody user account. This is SonicWall Issue ID 181195.
The bug was discovered 01/27/2017. The weakness was presented 02/22/2017 with Dell (Website). It is possible to read the advisory at documents.software.dell.com. This vulnerability is known as CVE-2016-9683 since 11/30/2016. The attack can be launched remotely. A single authentication is required for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.
The vulnerability was handled as a non-public zero-day exploit for at least 26 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370319 (Dell SonicWall Remote Command Injection Vulnerability).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
See 97182 and 97184 for similar entries.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
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CVSSv3
VulDB Meta Base Score: 8.0VulDB Meta Temp Score: 8.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
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VulDB Base Score: 🔍
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Exploiting
Class: Command injectionCWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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OpenVAS ID: 103317
OpenVAS Name: Dell SonicWALL Secure Remote Access (SRA) Multiple Remote Command Execution Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
11/30/2016 🔍01/27/2017 🔍
01/27/2017 🔍
02/22/2017 🔍
02/22/2017 🔍
02/22/2017 🔍
08/16/2020 🔍
Sources
Vendor: sonicwall.comAdvisory: documents.software.dell.com
Organization: Dell
Status: Not defined
Confirmation: 🔍
CVE: CVE-2016-9683 (🔍)
SecurityFocus: 96375 - Dell SonicWall Secure Remote Access Multiple Command Injection Vulnerabilities
OSVDB: - CVE-2016-9683 - SonicWall - Secure Remote Access server - Command Injection Issue
See also: 🔍
Entry
Created: 02/22/2017 11:58Updated: 08/16/2020 11:42
Changes: 02/22/2017 11:58 (67), 08/16/2020 11:42 (6)
Complete: 🔍
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