Eclipse Californium up to 2.7.2/3.5.0 DTLS Resumption amplification

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

A vulnerability classified as problematic has been found in Eclipse Californium up to 2.7.2/3.5.0. Affected is an unknown code block of the component DTLS Resumption Handler. The manipulation with an unknown input leads to a amplification vulnerability. CWE is classifying the issue as CWE-408. The product allows an entity to perform a legitimate but expensive operation before authentication or authorization has taken place. This is going to have an impact on availability. CVE summarizes:

In Eclipse Californium version 2.0.0 to 2.7.2 and 3.0.0-3.5.0 a DTLS resumption handshake falls back to a DTLS full handshake on a parameter mismatch without using a HelloVerifyRequest. Especially, if used with certificate based cipher suites, that results in message amplification (DDoS other peers) and high CPU load (DoS own peer). The misbehavior occurs only with DTLS_VERIFY_PEERS_ON_RESUMPTION_THRESHOLD values larger than 0.

The weakness was presented 07/29/2022. The advisory is shared for download at bugs.eclipse.org. This vulnerability is traded as CVE-2022-2576 since 07/29/2022. There are neither technical details nor an exploit publicly available.

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

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
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: Amplification
CWE: CWE-408 / CWE-405 / CWE-400
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

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

07/29/2022 🔍
07/29/2022 +0 days 🔍
07/29/2022 +0 days 🔍
08/28/2022 +30 days 🔍

Sourcesinfo

Advisory: bugs.eclipse.org
Status: Confirmed

CVE: CVE-2022-2576 (🔍)

Entryinfo

Created: 07/29/2022 19:33
Updated: 08/28/2022 15:06
Changes: 07/29/2022 19:33 (38), 08/28/2022 15:06 (11)
Complete: 🔍
Cache ID: 18:605:103

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