VDB-162495 · CVE-2020-5136 · GCVE-0-2020-5136

SonicWALL SonicOS up to 7.0.0.0 SSL-VPN Portal buffer 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 (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
5.0	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in SonicWALL SonicOS up to 7.0.0.0. This vulnerability affects unknown code of the component SSL-VPN Portal. Performing a manipulation results in buffer overflow. This vulnerability is known as CVE-2020-5136. No exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in SonicWALL SonicOS up to 7.0.0.0 (Firewall Software). This affects an unknown code of the component SSL-VPN Portal. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on availability.

The weakness was published 10/12/2020. It is possible to read the advisory at psirt.global.sonicwall.com. This vulnerability is uniquely identified as CVE-2020-5136. The technical details are unknown and an exploit is not publicly available.

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

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Firewall Software

Vendor

SonicWALL

Name

SonicOS

Version

License

commercial

Website

Vendor: https://www.sonicwall.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 5.0

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

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-2020-5136 (🔍)
GCVE (CVE): GCVE-0-2020-5136
GCVE (VulDB): GCVE-100-162495

Entryinfo

Created: 10/12/2020 15:17
Updated: 11/18/2020 09:34
Changes: 10/12/2020 15:17 (13), 10/12/2020 15:20 (24), 11/17/2020 08:29 (4), 11/18/2020 09:25 (3), 11/18/2020 09:34 (14)
Complete: 🔍
Cache ID: 216::103