GHSA-g954-5hwp-pp24 CVE-2022-25878
Prototype Pollution in protobufjs
- Severity
- 7.5 / 10
- High · CVSS 3.1
- Exploit chance (EPSS)
- 2.33%
- Chance of exploitation in the next 30 days. Higher than 83.53% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
- Fix
6.11.3- Upgrade protobufjs to this version or later
Description
The package protobufjs is vulnerable to Prototype Pollution, which can allow an attacker to add/modify properties of the Object.prototype. Versions after and including 6.10.0 until 6.10.3 and after and including 6.11.0 until 6.11.3 are vulnerable.
This vulnerability can occur in multiple ways:
- by providing untrusted user input to util.setProperty or to ReflectionObject.setParsedOption functions
- by parsing/loading .proto files
Affected versions
npm
| Package | Vulnerable | Fixed in |
|---|---|---|
| protobufjs | >= 6.11.0, < 6.11.3 |
6.11.3 |
| protobufjs | >= 6.10.0, < 6.10.3 |
6.10.3 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
protobufjs npm → 6.11.3
- npm
npm install protobufjs@6.11.3- yarn
yarn add protobufjs@6.11.3- pnpm
pnpm add protobufjs@6.11.3
Severity breakdown
CVSS 3.1 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Weakness
CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.
How to prevent it
- Implementation: By freezing the object prototype first (for example, Object.freeze(Object.prototype)), modification of the prototype becomes impossible.
- Architecture and Design: By blocking modifications of attributes that resolve to object prototype, such as proto or prototype, this weakness can be mitigated.
- Implementation: When handling untrusted objects, validating using a schema can be used.
- Implementation: By using an object without prototypes (via Object.create(null) ), adding object prototype attributes by accessing the prototype via the special attributes becomes impossible, mitigating this weakness.
- Implementation: Map can be used instead of objects in most cases. If Map methods are used instead of object attributes, it is not possible to access the object prototype or modify it.
References
Advisories
Packages
Other links
- github.com/protobufjs/protobuf.js/pull/1731
- github.com/protobufjs/protobuf.js/pull/1735
- github.com/protobufjs/protobuf.js/commit/b5f1391dff5515894830a6570e6d73f5511b2e8f
- github.com/protobufjs/protobuf.js/blob/d13d5d5688052e366aa2e9169f50dfca376b32cf…
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2841507
- snyk.io/vuln/SNYK-JS-PROTOBUFJS-2441248
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-j3f2-48v5-ccww protobufjs: Denial of Service via infinite loop in .proto option parsing | High | Also affects protobufjs |
| GHSA-jfj6-75fj-8934 protobufjs: Text Format string map parsing can mutate returned map object prototype | Medium | Also affects protobufjs |
| GHSA-94rc-8x27-4472 protobufjs: Memory amplification from preserved unknown fields in binary decode | Medium | Also affects protobufjs |
| GHSA-wcpc-wj8m-hjx6 protobufjs: Denial of service through unbounded Any expansion during JSON conversion | High | Also affects protobufjs |
| GHSA-f38q-mgvj-vph7 protobufjs : Schema-derived names can shadow runtime-significant properties | Medium | Also affects protobufjs |
| GHSA-jggg-4jg4-v7c6 protobufjs: Denial of Service via unbounded recursive JSON descriptor expansion | High | Also affects protobufjs |
| GHSA-2pr8-phx7-x9h3 protobuf.js: Denial of service from crafted field names in generated code | Medium | Also affects protobufjs |
| GHSA-66ff-xgx4-vchm protobuf.js: Code injection through bytes field defaults in generated toObject code | High | Also affects protobufjs |
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