Sierra Wireless ALEOS up to 4.16 OpenNDS /opennds_auth/ 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 was found in Sierra Wireless ALEOS. It has been classified as problematic. Affected is an unknown function of the file /opennds_auth/ of the component OpenNDS. This manipulation causes null pointer dereference. This vulnerability is registered as CVE-2023-38321. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Sierra Wireless ALEOS. Affected by this vulnerability is an unknown code block of the file /opennds_auth/ of the component OpenNDS. 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:

OpenNDS, as used in Sierra Wireless ALEOS before 4.17.0.12 and other products, allows remote attackers to cause a denial of service (NULL pointer dereference, daemon crash, and Captive Portal outage) via a GET request to /opennds_auth/ that lacks a custom query string parameter and client-token.

The weakness was published 12/25/2023. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2023-38321 since 07/14/2023. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 226444 (Linux Distros Unpatched Vulnerability : CVE-2023-38321), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.17.0.12 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (226444). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.8

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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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Nessus ID: 226444
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-38321

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ALEOS 4.17.0.12

Timelineinfo

07/14/2023 🔍
12/25/2023 +164 days 🔍
12/25/2023 +0 days 🔍
03/06/2025 +436 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2023-38321 (🔍)
GCVE (CVE): GCVE-0-2023-38321
GCVE (VulDB): GCVE-100-248995

Entryinfo

Created: 12/25/2023 10:31
Updated: 03/06/2025 00:19
Changes: 12/25/2023 10:31 (40), 01/19/2024 08:44 (11), 03/06/2025 00:19 (18)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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