CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.9 | $0-$5k | 0.00 |
A vulnerability classified as critical has been found in Apache Jackrabbit up to 2.20.10/2.21.17. Affected is an unknown functionality. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
Java object deserialization issue in Jackrabbit webapp/standalone on all platforms allows attacker to remotely execute code via RMIVersions up to (including) 2.20.10 (stable branch) and 2.21.17 (unstable branch) use the component "commons-beanutils", which contains a class that can be used for remote code execution over RMI. Users are advised to immediately update to versions 2.20.11 or 2.21.18. Note that earlier stable branches (1.0.x .. 2.18.x) have been EOLd already and do not receive updates anymore. In general, RMI support can expose vulnerabilities by the mere presence of an exploitable class on the classpath. Even if Jackrabbit itself does not contain any code known to be exploitable anymore, adding other components to your server can expose the same type of problem. We therefore recommend to disable RMI access altogether (see further below), and will discuss deprecating RMI support in future Jackrabbit releases. How to check whether RMI support is enabledRMI support can be over an RMI-specific TCP port, and over an HTTP binding. Both are by default enabled in Jackrabbit webapp/standalone. The native RMI protocol by default uses port 1099. To check whether it is enabled, tools like "netstat" can be used to check. RMI-over-HTTP in Jackrabbit by default uses the path "/rmi". So when running standalone on port 8080, check whether an HTTP GET request on localhost:8080/rmi returns 404 (not enabled) or 200 (enabled). Note that the HTTP path may be different when the webapp is deployed in a container as non-root context, in which case the prefix is under the user's control. Turning off RMIFind web.xml (either in JAR/WAR file or in unpacked web application folder), and remove the declaration and the mapping definition for the RemoteBindingServlet: RMI org.apache.jackrabbit.servlet.remote.RemoteBindingServlet RMI /rmi Find the bootstrap.properties file (in $REPOSITORY_HOME), and set rmi.enabled=false and also remove rmi.host rmi.port rmi.url-pattern If there is no file named bootstrap.properties in $REPOSITORY_HOME, it is located somewhere in the classpath. In this case, place a copy in $REPOSITORY_HOME and modify it as explained.
The weakness was shared 07/26/2023. The advisory is shared for download at openwall.com. This vulnerability is traded as CVE-2023-37895 since 07/10/2023. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/18/2023).
Upgrading eliminates this vulnerability.
Product
Vendor
Name
Version
- 2.20.0
- 2.20.1
- 2.20.2
- 2.20.3
- 2.20.4
- 2.20.5
- 2.20.6
- 2.20.7
- 2.20.8
- 2.20.9
- 2.20.10
- 2.21.0
- 2.21.1
- 2.21.2
- 2.21.3
- 2.21.4
- 2.21.5
- 2.21.6
- 2.21.7
- 2.21.8
- 2.21.9
- 2.21.10
- 2.21.11
- 2.21.12
- 2.21.13
- 2.21.14
- 2.21.15
- 2.21.16
- 2.21.17
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔒VulDB CVSS-BT Score: 🔒
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.0VulDB Meta Temp Score: 7.9
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔒
CVSSv2
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: DeserializationCWE: CWE-502 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
0-Day | unlock | unlock | unlock | unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Timeline
07/10/2023 CVE reserved07/26/2023 Advisory disclosed
07/26/2023 VulDB entry created
08/18/2023 VulDB entry last update
Sources
Vendor: apache.orgAdvisory: openwall.com
Status: Confirmed
CVE: CVE-2023-37895 (🔒)
Entry
Created: 07/26/2023 09:30Updated: 08/18/2023 15:26
Changes: 07/26/2023 09:30 (37), 08/18/2023 15:26 (11)
Complete: 🔍
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