Processmaker: Improper Preservation of Permissions
CVE-2022-38577 is a high-severity improper preservation of permissions vulnerability in Processmaker, 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 3.5.4 as the first without the flaw, so updating Processmaker to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 2.31% chance of exploitation within 30 days, higher than 84% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Processmaker to 3.5.4 or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Processmaker | Processmaker | before 3.5.4 | 3.5.4 |
Version data comes from NVD's product matching. 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 | NVD |
| CVSS 3.1 | 8.8 | High | CISA (ADP) |
Official description
ProcessMaker before v3.5.4 was discovered to contain insecure permissions in the user profile page. This vulnerability allows attackers to escalate normal users to Administrators.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Preservation of Permissions
The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended.
More Improper Preservation of Permissions vulnerabilities (CWE-281)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Technical write-ups (may include proof of concept)
- packetstormsecurity.com/files/168427/ProcessMaker-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
- drive.google.com/file/d/1iP9NYUkYEy_FGMpcnTkUWn8nGcqDT02_/view?usp=sharingExploit, Third Party Advisory
Other vulnerabilities in Processmaker
- 8.6 High severity
Recent Improper Preservation of Permissions vulnerabilities
- 7.2 High severity
- 7.8 High severity
- 8.8 High severity
- 8.8 High severity
- 7.8 High severity
- 7.8 High severity
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