CVE-2022-23628
Summary
| CVE | CVE-2022-23628 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2022-02-09 22:15:00 UTC |
| Updated | 2022-02-17 02:37:00 UTC |
| Description | OPA is an open source, general-purpose policy engine. Under certain conditions, pretty-printing an abstract syntax tree (AST) that contains synthetic nodes could change the logic of some statements by reordering array literals. Example of policies impacted are those that parse and compare web paths. **All of these** three conditions have to be met to create an adverse effect: 1. An AST of Rego had to be **created programmatically** such that it ends up containing terms without a location (such as wildcard variables). 2. The AST had to be **pretty-printed** using the `github.com/open-policy-agent/opa/format` package. 3. The result of the pretty-printing had to be **parsed and evaluated again** via an OPA instance using the bundles, or the Golang packages. If any of these three conditions are not met, you are not affected. Notably, all three would be true if using **optimized bundles**, i.e. bundles created with `opa build -O=1` or higher. In that case, the optimizer would fulfil condition (1.), the result of that would be pretty-printed when writing the bundle to disk, fulfilling (2.). When the bundle was then used, we'd satisfy (3.). As a workaround users may disable optimization when creating bundles. |
Risk And Classification
Problem Types: CWE-682
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Openpolicyagent | Open Policy Agent | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| format: make groupIterable sort by row by srenatus · Pull Request #3851 · open-policy-agent/opa · GitHub | MISC | github.com | |
| format: don't group iterable when one has defaulted location (#4260) · open-policy-agent/opa@932e4ff · GitHub | MISC | github.com | |
| format: make groupIterable sort by row · open-policy-agent/opa@bfd984d · GitHub | MISC | github.com | |
| Formatting generated code can change ordering of array literals · Advisory · open-policy-agent/opa · GitHub | CONFIRM | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.