CVE-2019-9039

In Couchbase Sync Gateway 2.1.2, an attacker with access to the Sync Gateway’s public REST API was able to issue additional N1QL statements and extract sensitive data or call arbitrary N1QL functions through the parameters "startkey" and "endkey" on the "_all_docs" endpoint. By issuing nested queries with CPU-intensive operations they may have been able to cause increased resource usage and denial of service conditions. The _all_docs endpoint is not required for Couchbase Mobile replication and external access to this REST endpoint has been blocked to mitigate this issue. This issue has been fixed in versions 2.5.0 and 2.1.3.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://research.hisolutions.com/2019/06/n1ql-injection-in-couchbase-sync-gateway-cve-2019-9039/	Exploit Third Party Advisory
https://docs.couchbase.com/sync-gateway/2.5/release-notes.html	Release Notes Vendor Advisory
https://www.couchbase.com/resources/security#SecurityAlerts

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Configurations

Configuration 1 (hide)

cpe:2.3:a:couchbase:sync_gateway:2.1.2:*:*:*:*:*:*:*

Information

Published : 2019-06-26 12:15

Updated : 2020-02-10 13:54

NVD link : CVE-2019-9039

Mitre link : CVE-2019-9039

JSON object : View

CWE

CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

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Products Affected

couchbase

sync_gateway

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