ZyXEL VPN On-premise Password Change chg_exp_pwd command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in ZyXEL VPN On-premise, VPN Orchestrator, USG, USG Flex, APT and NSG and classified as critical. This affects the function chg_exp_pwd of the component Password Change Handler. Such manipulation leads to command injection. This vulnerability is documented as CVE-2020-29299. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in ZyXEL VPN On-premise, VPN Orchestrator, USG, USG Flex, APT and NSG (Network Encryption Software) and classified as critical. Affected by this issue is the function chg_exp_pwd of the component Password Change Handler. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The weakness was released 12/27/2020. The advisory is shared for download at zyxel.com. This vulnerability is handled as CVE-2020-29299. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/27/2020 🔍
12/27/2020 +0 days 🔍
12/27/2020 +0 days 🔍

Sourcesinfo

Vendor: zyxel.com

Advisory: zyxel.com
Status: Confirmed

CVE: CVE-2020-29299 (🔍)
GCVE (CVE): GCVE-0-2020-29299
GCVE (VulDB): GCVE-100-166856

Entryinfo

Created: 12/27/2020 15:08
Changes: 12/27/2020 15:08 (38)
Complete: 🔍
Cache ID: 216::103

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