SonicWALL SonicOS Host Header redirect

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in SonicWALL SonicOS. It has been classified as problematic. Impacted is an unknown function of the component Host Header Handler. The manipulation leads to redirect. This vulnerability is listed as CVE-2021-20031. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in SonicWALL SonicOS (Firewall Software) (unknown version) and classified as problematic. This issue affects an unknown code block of the component Host Header Handler. The manipulation with an unknown input leads to a redirect vulnerability. Using CWE to declare the problem leads to CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. Impacted is confidentiality, integrity, and availability.

The weakness was presented 10/13/2021 as SNWLID-2021-0019. It is possible to read the advisory at psirt.global.sonicwall.com. The identification of this vulnerability is CVE-2021-20031 since 12/17/2020. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1204.001 according to MITRE ATT&CK.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

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

The vulnerability is also documented in the vulnerability database at Exploit-DB (50414). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.5
VulDB Temp Score: 5.2
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: Redirect
CWE: CWE-601
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/17/2020 🔍
10/13/2021 +299 days 🔍
10/13/2021 +0 days 🔍
05/03/2025 +1298 days 🔍

Sourcesinfo

Vendor: sonicwall.com

Advisory: SNWLID-2021-0019
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-20031 (🔍)
GCVE (CVE): GCVE-0-2021-20031
GCVE (VulDB): GCVE-100-184343
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 10/13/2021 08:06
Updated: 05/03/2025 05:35
Changes: 10/13/2021 08:06 (37), 10/20/2021 08:19 (2), 08/05/2024 14:21 (23), 05/03/2025 05:35 (3)
Complete: 🔍
Cache ID: 216::103

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

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