Authentication bypass in InfluxDB



| Updated: 2021-01-02
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-20933
CWE-ID CWE-287
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 InfluxDB
Server applications / Database software

Vendor InfluxData

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Authentication

EUVDB-ID: #VU49209

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-20933

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due the JWT token may have an empty SharedSecret in the authenticate function in services/httpd/handler.go. A remote non-authenticated attacker can bypass authentication process and gain unauthorized access to the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

InfluxDB: 1.7.0 - 1.7.5

CPE2.3 External links

http://github.com/influxdata/influxdb/commit/761b557315ff9c1642cf3b0e5797cd3d983a24c0
http://github.com/influxdata/influxdb/compare/v1.7.5...v1.7.6
http://github.com/influxdata/influxdb/issues/12927
http://lists.debian.org/debian-lts-announce/2020/12/msg00030.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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