Lightbend Akka up to 2.8.0 async-dns random values

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Lightbend Akka up to 2.8.0. It has been classified as problematic. The affected element is an unknown function of the component async-dns. This manipulation causes random values. This vulnerability is handled as CVE-2023-31442. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Lightbend Akka up to 2.8.0. It has been declared as problematic. Affected by this vulnerability is an unknown code block of the component async-dns. The manipulation with an unknown input leads to a random values vulnerability. The CWE definition for the vulnerability is CWE-330. The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers. As an impact it is known to affect confidentiality. The summary by CVE is:

In Lightbend Akka before 2.8.1, the async-dns resolver (used by Discovery in DNS mode and transitively by Cluster Bootstrap) uses predictable DNS transaction IDs when resolving DNS records, making DNS resolution subject to poisoning by an attacker. If the application performing discovery does not validate (e.g., via TLS) the authenticity of the discovered service, this may result in exfiltration of application data (e.g., persistence events may be published to an unintended Kafka broker). If such validation is performed, then the poisoning constitutes a denial of access to the intended service. This affects Akka 2.5.14 through 2.8.0, and Akka Discovery through 2.8.0.

The weakness was released 05/11/2023 as akka-async-dns-2023-31442. It is possible to read the advisory at akka.io. This vulnerability is known as CVE-2023-31442 since 04/28/2023. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600.001 according to MITRE ATT&CK.

Upgrading to version 2.8.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-35750). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.2

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Random values
CWE: CWE-330 / CWE-310
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Lightbend Akka 2.8.1

Timelineinfo

04/28/2023 🔍
05/11/2023 +13 days 🔍
05/11/2023 +0 days 🔍
12/24/2025 +958 days 🔍

Sourcesinfo

Advisory: akka-async-dns-2023-31442
Status: Confirmed

CVE: CVE-2023-31442 (🔍)
GCVE (CVE): GCVE-0-2023-31442
GCVE (VulDB): GCVE-100-228751
EUVD: 🔍

Entryinfo

Created: 05/11/2023 07:06
Updated: 12/24/2025 23:30
Changes: 05/11/2023 07:06 (40), 06/07/2023 11:29 (11), 01/27/2025 18:40 (26), 12/24/2025 23:30 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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