Couchbase Server up to 5.5.3/6.0.0 Memcache information exposure

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Couchbase Server up to 5.5.3/6.0.0. Affected by this issue is some unknown functionality of the component Memcache. The manipulation leads to information exposure. This vulnerability is uniquely identified as CVE-2019-11465. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Couchbase Server up to 5.5.3/6.0.0. This issue affects an unknown functionality of the component Memcache. The manipulation with an unknown input leads to a information exposure vulnerability. Using CWE to declare the problem leads to CWE-203. The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not. Impacted is confidentiality. The summary by CVE is:

An issue was discovered in Couchbase Server 5.5.x through 5.5.3 and 6.0.0. The Memcached "connections" stat block command emits a non-redacted username. The system information submitted to Couchbase as part of a bug report included the usernames for all users currently logged into the system even if the log was redacted for privacy. This has been fixed (in 5.5.4 and 6.0.1) so that usernames are tagged properly in the logs and are hashed out when the logs are redacted.

The weakness was disclosed 09/10/2019. The identification of this vulnerability is CVE-2019-11465 since 04/22/2019. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 5.5.4 or 6.0.1 eliminates this vulnerability.

The entry VDB-141526 is pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

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

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information exposure
CWE: CWE-203 / CWE-200 / CWE-284
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: Couchbase Server 5.5.4/6.0.1

Timelineinfo

04/22/2019 🔍
09/10/2019 +141 days 🔍
09/11/2019 +1 days 🔍
12/19/2023 +1560 days 🔍

Sourcesinfo

Advisory: couchbase.com
Status: Not defined

CVE: CVE-2019-11465 (🔍)
GCVE (CVE): GCVE-0-2019-11465
GCVE (VulDB): GCVE-100-141527
See also: 🔍

Entryinfo

Created: 09/11/2019 07:10
Updated: 12/19/2023 08:09
Changes: 09/11/2019 07:10 (37), 08/18/2020 20:01 (17), 12/19/2023 08:09 (4)
Complete: 🔍
Cache ID: 216::103

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