CVE-2021-32824
CVSS V2 None
CVSS V3 None
Description
Apache Dubbo is a java based, open source RPC framework. Versions prior to 2.6.10 and 2.7.10 are vulnerable to pre-auth remote code execution via arbitrary bean manipulation in the Telnet handler. The Dubbo main service port can be used to access a Telnet Handler which offers some basic methods to collect information about the providers and methods exposed by the service and it can even allow to shutdown the service. This endpoint is unprotected. Additionally, a provider method can be invoked using the `invoke` handler. This handler uses a safe version of FastJson to process the call arguments. However, the resulting list is later processed with `PojoUtils.realize` which can be used to instantiate arbitrary classes and invoke its setters. Even though FastJson is properly protected with a default blocklist, `PojoUtils.realize` is not, and an attacker can leverage that to achieve remote code execution. Versions 2.6.10 and 2.7.10 contain fixes for this issue.
Overview
- CVE ID
- CVE-2021-32824
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2023-01-03T18:15:12
- Last Modified Date
- 2023-01-10T13:57:42
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:* | 1 | OR | 2.6.10 | |
| cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:* | 1 | OR | 2.7.0 | 2.7.10 |
References
| Reference URL | Reference Tags |
|---|---|
| https://securitylab.github.com/advisories/GHSL-2021-034_043-apache-dubbo/ |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-32824 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32824 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2023-01-03 18:17:06 | Added to TrackCVE | |||
| 2023-01-03 18:17:07 | Weakness Enumeration | new | ||
| 2023-01-04 14:14:26 | 2023-01-04T14:03:02 | CVE Modified Date | updated | |
| 2023-01-04 14:14:26 | Received | Awaiting Analysis | Vulnerability Status | updated |
| 2023-01-09 12:21:24 | Awaiting Analysis | Undergoing Analysis | Vulnerability Status | updated |
| 2023-01-10 14:18:23 | 2023-01-10T13:57:42 | CVE Modified Date | updated | |
| 2023-01-10 14:18:23 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |
| 2023-01-10 14:18:24 | CPE Information | updated |