Dropbear prior 2013.59 GSSAPI User improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Dropbear. It has been rated as problematic. Affected is an unknown function of the component GSSAPI. This manipulation causes improper authentication (User). This vulnerability is registered as CVE-2017-2659. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Dropbear (SSH Server Software) and classified as problematic. Affected by this vulnerability is an unknown function of the component GSSAPI. The manipulation with an unknown input leads to a improper authentication vulnerability (User). The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality. The summary by CVE is:

It was found that dropbear before version 2013.59 with GSSAPI leaks whether given username is valid or invalid. When an invalid username is given, the GSSAPI authentication failure was incorrectly counted towards the maximum allowed number of password attempts.

The weakness was published 03/21/2019 as not defined bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. This vulnerability is known as CVE-2017-2659 since 12/01/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

Upgrading to version 2013.59 eliminates this vulnerability.

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Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: User
Class: Improper authentication / User
CWE: CWE-287
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: Dropbear 2013.59

Timelineinfo

12/01/2016 🔍
03/21/2019 +840 days 🔍
03/21/2019 +0 days 🔍
08/03/2023 +1596 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-2659 (🔍)
GCVE (CVE): GCVE-0-2017-2659
GCVE (VulDB): GCVE-100-131845

Entryinfo

Created: 03/21/2019 18:17
Updated: 08/03/2023 07:03
Changes: 03/21/2019 18:17 (58), 05/17/2020 11:55 (1), 08/03/2023 07:03 (14)
Complete: 🔍
Cache ID: 216::103

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