Hotdog: Improper Privilege Management
CVE-2022-0071 is a high-severity improper privilege management vulnerability in Hotdog from Amazon Web Services, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists version 1.0.2 as the first without the flaw, so updating Hotdog to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.39% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Hotdog to 1.0.2 or a later version.
- Read the advisory on github.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Amazon Web Services | Hotdog | before 1.0.2 | 1.0.2 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.8 | High | CNA (paloaltonetworks.com) |
| CVSS 3.1 | 8.8 | High | NVD |
| CVSS 2.0 | 7.2 | High | NVD |
Official description
Incomplete fix for CVE-2021-3101. Hotdog, prior to v1.0.2, did not mimic the resource limits, device restrictions, or syscall filters of the target JVM process. This would allow a container to exhaust the resources of the host, modify devices, or make syscalls that would otherwise be blocked.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Privilege Management
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
How developers prevent this class of flaw
- Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
- Follow the principle of least privilege when assigning access rights to entities in a software system.
- Consider following the principle of separation of privilege. Require multiple conditions to be met before permitting access to a system resource.
More Improper Privilege Management vulnerabilities (CWE-269)
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Advisories
- github.com/bottlerocket-os/hotdog/security/advisories/GHSA-jr96-7frv-3mpjThird Party Advisory
Patches and release notes
- unit42.paloaltonetworks.com/aws-log4shell-hot-patch-vulnerabilitiesExploit, Third Party Advisory
Recent Improper Privilege Management vulnerabilities
- 8.8 High severity
- 7.3 High severity
- 7.8 High severity
- 8.8 High severity
- 8.8 High severity
- 7.5 High severity
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