alf.io: Improper Authorization of Index Containing Sensitive Information
CVE-2024-25635 is a high-severity improper authorization of index containing sensitive information vulnerability in alf.io from Alfio-event, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. The record lists version 2.0-M4-2402 as the first without the flaw, so updating alf.io to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.72% chance of exploitation within 30 days, higher than 54% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update alf.io to 2.0-M4-2402 or a later version.
- Update Alf to 2.0-m4-2402 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 |
|---|---|---|---|
| Alfio-event | alf.io | < 2.0-M4-2402; before 2.0-M4-2402 | 2.0-M4-2402 |
| Alf | Alf | before 2.0-m4-2402 | 2.0-m4-2402 |
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
- NetworkCan be exploited remotely over a network, including the internet.
- 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
- UnchangedImpact stays within the vulnerable component.
- 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:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.8 | High | CNA (github.com) |
| CVSS 3.1 | 8.8 | High | NVD |
Official description
alf.io is an open source ticket reservation system. Prior to version 2.0-Mr-2402, organization owners can view the generated API KEY and USERS of other organization owners using the `http://192.168.26.128:8080/admin/api/users/<user_id>` endpoint, which exposes the details of the provided user ID. This may also expose the API KEY in the username of the user. Version 2.0-M4-2402 fixes this issue.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Authorization of Index Containing Sensitive Information
The product creates a search index of private or sensitive documents, but it does not properly limit index access to actors who are authorized to see the original information.
More Improper Authorization of Index Containing Sensitive Information vulnerabilities (CWE-612)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in alf.io
- 7.1 High severity
- 9.1 Critical severity
- 7.6 High severity
Recent Improper Authorization of Index Containing Sensitive Information vulnerabilities
- 7.5 High severity
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