CVE-2023-1786

Publication date 26 April 2023

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

Sensitive data could be exposed in logs of cloud-init before version 23.1.2. An attacker could use this information to find hashed passwords and possibly escalate their privilege.

From the Ubuntu Security Team

James Golovich discovered that sensitive data could be exposed in logs. An attacker could use this information to find hashed passwords and possibly escalate their privilege.

Mitigation

The Ubuntu update to address this attempted to redact information in /var/log/cloud-init.log and /run/cloud-init/instance-data.json. Additional logs may require the removal of sensitive information.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
cloud-init	23.04 lunar	Fixed 23.1.2-0ubuntu0~23.04.1
	22.10 kinetic	Fixed 23.1.2-0ubuntu0~22.10.1
	22.04 LTS jammy	Fixed 23.1.2-0ubuntu0~22.04.1
	20.04 LTS focal	Fixed 23.1.2-0ubuntu0~20.04.1
	18.04 LTS bionic	Fixed 23.1.2-0ubuntu0~18.04.1
	16.04 LTS xenial	Fixed 21.1-19-gbad84ad4-0ubuntu1~16.04.4 Ubuntu Pro
	14.04 LTS trusty	Ignored end of standard support

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Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N