Briar up to 1.5.3 Introduction Client channel accessible

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Briar up to 1.5.3. This impacts an unknown function of the component Introduction Client. The manipulation leads to channel accessible. This vulnerability is referenced as CVE-2023-33983. No exploit is available.

Detailsinfo

A vulnerability was found in Briar up to 1.5.3 and classified as problematic. This issue affects some unknown processing of the component Introduction Client. The manipulation with an unknown input leads to a channel accessible vulnerability. Using CWE to declare the problem leads to CWE-300. The product does not adequately verify the identity of actors at both ends of a communication channel, or does not adequately ensure the integrity of the channel, in a way that allows the channel to be accessed or influenced by an actor that is not an endpoint. Impacted is confidentiality. The summary by CVE is:

The Introduction Client in Briar through 1.5.3 does not implement out-of-band verification for the public keys of introducees. An introducer can launch man-in-the-middle attacks against later private communication between two introduced parties.

The weakness was published 05/24/2023. The advisory is shared at ethz.ch. The identification of this vulnerability is CVE-2023-33983 since 05/24/2023. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1557 for this issue.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-38107). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.8

VulDB Base Score: 2.6
VulDB Temp Score: 2.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.4
NVD Vector: 🔍

CNA Base Score: 7.4
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Channel accessible
CWE: CWE-300
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

05/24/2023 🔍
05/24/2023 +0 days 🔍
05/24/2023 +0 days 🔍
01/06/2026 +958 days 🔍

Sourcesinfo

Advisory: ethz.ch
Status: Not defined

CVE: CVE-2023-33983 (🔍)
GCVE (CVE): GCVE-0-2023-33983
GCVE (VulDB): GCVE-100-229865
EUVD: 🔍

Entryinfo

Created: 05/24/2023 21:10
Updated: 01/06/2026 17:41
Changes: 05/24/2023 21:10 (36), 06/17/2023 10:13 (11), 01/16/2025 20:36 (26), 01/06/2026 17:41 (1)
Complete: 🔍
Cache ID: 216::103

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

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