SonicWALL SonicOS up to 7.0.0.0 SSL VPN Service heap-based overflow

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
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.
6.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in SonicWALL SonicOS up to 7.0.0.0. Impacted is an unknown function of the component SSL VPN Service. The manipulation leads to heap-based overflow. This vulnerability is uniquely identified as CVE-2020-5138. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in SonicWALL SonicOS up to 7.0.0.0 (Firewall Software). This issue affects some unknown processing of the component SSL VPN Service. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is availability.

The weakness was disclosed 10/12/2020. The advisory is shared at psirt.global.sonicwall.com. The identification of this vulnerability is CVE-2020-5138. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

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: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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: Heap-based overflow
CWE: CWE-122 / CWE-119
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

12/31/2019 🔍
10/12/2020 +285 days 🔍
10/12/2020 +0 days 🔍
11/18/2020 +37 days 🔍

Sourcesinfo

Vendor: sonicwall.com

Advisory: psirt.global.sonicwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-5138 (🔍)
GCVE (CVE): GCVE-0-2020-5138
GCVE (VulDB): GCVE-100-162497

Entryinfo

Created: 10/12/2020 15:18
Updated: 11/18/2020 10:01
Changes: 10/12/2020 15:18 (13), 10/12/2020 15:23 (24), 11/17/2020 08:29 (4), 11/18/2020 09:52 (3), 11/18/2020 10:01 (14)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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