SonicWALL SonicOS 5/6/7 HTTP Content-Length stack-based overflow
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.5 | $0-$5k | 0.00 |
A vulnerability was found in SonicWALL SonicOS 5/6/7 (Firewall Software). It has been rated as critical. This issue affects an unknown code block of the component HTTP Content-Length Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is availability.
The weakness was published 01/10/2022 as SNWLID-2021-0027. The advisory is shared at psirt.global.sonicwall.com. The identification of this vulnerability is CVE-2021-20046 since 12/17/2020. 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.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.5VulDB Meta Temp Score: 6.5
VulDB Base Score: 6.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
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unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Stack-based overflowCWE: CWE-121 / CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
12/17/2020 🔍01/10/2022 🔍
01/10/2022 🔍
01/12/2022 🔍
Sources
Vendor: sonicwall.comAdvisory: SNWLID-2021-0027
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2021-20046 (🔍)
Entry
Created: 01/10/2022 16:59Updated: 01/12/2022 08:27
Changes: 01/10/2022 16:59 (39), 01/12/2022 08:27 (2)
Complete: 🔍
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