Eclipse Mosquitto up to 1.5.5 Message 7pk security

Summaryinfo

A vulnerability identified as critical has been detected in Eclipse Mosquitto up to 1.5.5. The impacted element is an unknown function of the component Message Handler. The manipulation leads to 7pk security. This vulnerability is documented as CVE-2018-12546. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Eclipse Mosquitto up to 1.5.5. This issue affects some unknown functionality of the component Message Handler. The manipulation with an unknown input leads to a 7pk security vulnerability. Using CWE to declare the problem leads to CWE-254. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) when a client publishes a retained message to a topic, then has its access to that topic revoked, the retained message will still be published to clients that subscribe to that topic in the future. In some applications this may result in clients being able cause effects that would otherwise not be allowed.

The bug was discovered 02/08/2019. The weakness was released 03/27/2019 (Website). It is possible to read the advisory at bugs.eclipse.org. The identification of this vulnerability is CVE-2018-12546 since 06/18/2018. The attack may be initiated remotely. A simple authentication is required for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1211 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 47 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176583 (Debian Security Update for mosquitto (DSA 4388-1)).

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

Entries connected to this vulnerability are available at VDB-132492 and VDB-132493. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• Eclipse

Name

• Mosquitto

Version

• 1.5.0
• 1.5.1
• 1.5.2
• 1.5.3
• 1.5.4
• 1.5.5

License

• open-source

CPE 2.3info

• 🔍
• 🔍
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CPE 2.2info

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Entryinfo

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

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