Linksys WRT54GL up to 4.30.18.006 upnp soap_action null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linksys WRT54GL up to 4.30.18.006. This affects the function soap_action of the component upnp. This manipulation causes null pointer dereference. This vulnerability appears as CVE-2022-43972. The attacker needs to be present on the local network. There is no available exploit.

Detailsinfo

A vulnerability was found in Linksys WRT54GL up to 4.30.18.006 (Router Operating System). It has been declared as critical. Affected by this vulnerability is the function soap_action of the component upnp. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.

The weakness was presented 01/10/2023. The advisory is shared at youtu.be. This vulnerability is known as CVE-2022-43972 since 10/28/2022. Technical details are known, but no exploit is 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

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CPE 2.3info

CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

VulDB Base Score: 6.5
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (Trellix): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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

10/28/2022 🔍
01/10/2023 +74 days 🔍
01/10/2023 +0 days 🔍
01/30/2023 +20 days 🔍

Sourcesinfo

Vendor: linksys.com

Advisory: youtu.be
Status: Not defined

CVE: CVE-2022-43972 (🔍)
GCVE (CVE): GCVE-0-2022-43972
GCVE (VulDB): GCVE-100-217753

Entryinfo

Created: 01/10/2023 08:57
Updated: 01/30/2023 19:08
Changes: 01/10/2023 08:57 (51), 01/30/2023 19:08 (11)
Complete: 🔍
Cache ID: 216::103

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

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