CVE-2021-20048

HIGH

8.8

Description

A Stack-based buffer overflow in the SonicOS SessionID HTTP response header allows a remote authenticated attacker to cause Denial of Service (DoS) and potentially results in code execution in the firewall. This vulnerability affected SonicOS Gen 5, Gen 6 and Gen 7 firmware versions.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published1/10/2022

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

sonicwall:nsa_2650sonicwall:nsa_2700sonicwall:nsa_3650sonicwall:nsa_3700sonicwall:nsa_4650sonicwall:nsa_4700sonicwall:nsa_5650sonicwall:nsa_6650sonicwall:nsa_6700sonicwall:nsa_9250sonicwall:nsa_9450sonicwall:nsa_9650sonicwall:nssp_12400sonicwall:nssp_12800sonicwall:nssp_13700sonicwall:nssp_15700sonicwall:nsv_10sonicwall:nsv_100sonicwall:nsv_1600sonicwall:nsv_200sonicwall:nsv_25sonicwall:nsv_270sonicwall:nsv_300sonicwall:nsv_400sonicwall:nsv_470sonicwall:nsv_50sonicwall:nsv_800sonicwall:nsv_870sonicwall:soho_250sonicwall:soho_250wsonicwall:sonicossonicwall:supermassive_9200sonicwall:supermassive_9400sonicwall:supermassive_9600sonicwall:supermassive_9800sonicwall:supermassive_e10200sonicwall:supermassive_e10400sonicwall:supermassive_e10800sonicwall:tz270sonicwall:tz270wsonicwall:tz300sonicwall:tz300psonicwall:tz300wsonicwall:tz350sonicwall:tz350wsonicwall:tz370sonicwall:tz370wsonicwall:tz400sonicwall:tz400wsonicwall:tz470sonicwall:tz470wsonicwall:tz500sonicwall:tz500wsonicwall:tz570sonicwall:tz570psonicwall:tz570wsonicwall:tz600sonicwall:tz600psonicwall:tz670

Weaknesses (CWE)

CWE-121CWE-787

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0028(PSIRT@sonicwall.com)

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0028(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.