CVE-2023-42809
"Redisson Unvalidated Java Object Deserialization Code Execution"
Description
Redisson is a Java Redis client that uses the Netty framework. Prior to version 3.22.0, some of the messages received from the Redis server contain Java objects that the client deserializes without further validation. Attackers that manage to trick clients into communicating with a malicious server can include especially crafted objects in its responses that, once deserialized by the client, force it to execute arbitrary code. This can be abused to take control of the machine the client is running in. Version 3.22.0 contains a patch for this issue. Some post-fix advice is available. Do NOT use `Kryo5Codec` as deserialization codec, as it is still vulnerable to arbitrary object deserialization due to the `setRegistrationRequired(false)` call. On the contrary, `KryoCodec` is safe to use. The fix applied to `SerializationCodec` only consists of adding an optional allowlist of class names, even though making this behavior the default is recommended. When instantiating `SerializationCodec` please use the `SerializationCodec(ClassLoader classLoader, Set<String> allowedClasses)` constructor to restrict the allowed classes for deserialization.
INFO
Published Date :
Oct. 4, 2023, 8:15 p.m.
Last Modified :
Oct. 10, 2023, 5:21 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
6.0
Exploitability Score :
2.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-42809.
| URL | Resource |
|---|---|
| https://github.com/redisson/redisson/commit/fe6a2571801656ff1599ef87bdee20f519a5d1fe | Patch |
| https://securitylab.github.com/advisories/GHSL-2023-053_Redisson/ | Exploit Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-42809 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-42809 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Oct. 10, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/redisson/redisson/commit/fe6a2571801656ff1599ef87bdee20f519a5d1fe No Types Assigned https://github.com/redisson/redisson/commit/fe6a2571801656ff1599ef87bdee20f519a5d1fe Patch Changed Reference Type https://securitylab.github.com/advisories/GHSL-2023-053_Redisson/ No Types Assigned https://securitylab.github.com/advisories/GHSL-2023-053_Redisson/ Exploit, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:redisson:redisson:*:*:*:*:*:*:*:* versions up to (excluding) 3.22.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-42809 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-42809
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.12 }} 0.01%
score
0.46063
percentile