CVE-2021-39144
- EPSS 94.41%
- Veröffentlicht 23.08.2021 18:15:12
- Zuletzt bearbeitet 23.05.2025 16:49:25
- Quelle security-advisories@github.com
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XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.
10.03.2023: CISA Known Exploited Vulnerabilities (KEV) Catalog
XStream Remote Code Execution Vulnerability
SchwachstelleXStream contains a remote code execution vulnerability that allows an attacker to manipulate the processed input stream and replace or inject objects that result in the execution of a local command on the server. This vulnerability can affect multiple products, including but not limited to VMware Cloud Foundation.
BeschreibungApply updates per vendor instructions.
Erforderliche Maßnahmen| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 94.41% | 1 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 8.5 | 1.8 | 6 |
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
|
| nvd@nist.gov | 6 | 6.8 | 6.4 |
AV:N/AC:M/Au:S/C:P/I:P/A:P
|
| security-advisories@github.com | 8.5 | 1.8 | 6 |
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
|
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.