Netgate pfSense 2.4.4-RELEASE powerd_ac_mode command injection

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Netgate pfSense 2.4.4-RELEASE. Impacted is an unknown function. This manipulation of the argument powerd_ac_mode as part of POST Parameter causes command injection. The identification of this vulnerability is CVE-2018-4020. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Netgate pfSense 2.4.4-RELEASE (Firewall Software). It has been declared as critical. Affected by this vulnerability is an unknown functionality. The manipulation of the argument powerd_ac_mode as part of a POST Parameter 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:

An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the parameters of a specific POST request. The attacker can exploit this and gain the ability to execute arbitrary commands on the system. An attacker needs to be able to send authenticated POST requests to the administration web interface. Command injection is possible in the `powerd_ac_mode` POST parameter parameter.

The bug was discovered 12/03/2018. The weakness was shared 12/03/2018 (Website). The advisory is shared at talosintelligence.com. This vulnerability is known as CVE-2018-4020 since 01/02/2018. The exploitation appears to be easy. The attack can be launched remotely. The successful exploitation needs a single authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

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

The entries VDB-127428 and VDB-127430 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 4.7
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.2
NVD Vector: 🔍

CNA Base Score: 7.2
CNA Vector (Talos): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
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

01/02/2018 🔍
12/03/2018 +335 days 🔍
12/03/2018 +0 days 🔍
12/03/2018 +0 days 🔍
12/04/2018 +1 days 🔍
06/12/2023 +1651 days 🔍

Sourcesinfo

Advisory: talosintelligence.com
Status: Not defined

CVE: CVE-2018-4020 (🔍)
GCVE (CVE): GCVE-0-2018-4020
GCVE (VulDB): GCVE-100-127429
See also: 🔍

Entryinfo

Created: 12/04/2018 09:39
Updated: 06/12/2023 15:16
Changes: 12/04/2018 09:39 (58), 04/17/2020 07:37 (1), 06/12/2023 15:16 (14)
Complete: 🔍
Cache ID: 216::103

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