Apache Tapestry up to 5.4.5/5.5.0/5.6.2/5.7.0 AppModule.class deserialization

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.1 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical was found in Apache Tapestry up to 5.4.5/5.5.0/5.6.2/5.7.0. This vulnerability affects unknown code of the file /assets/something/services/AppModule.class. Executing a manipulation can lead to deserialization. This vulnerability is registered as CVE-2021-27850. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.
Details
A vulnerability has been found in Apache Tapestry up to 5.4.5/5.5.0/5.6.2/5.7.0 and classified as critical. This vulnerability affects an unknown function of the file /assets/something/services/AppModule.class. The manipulation with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality.
The weakness was published 04/15/2021. The advisory is available at openwall.com. This vulnerability was named CVE-2021-27850. Technical details are known, but there is no available exploit.
Upgrading to version 5.6.2 or 5.7.1 eliminates this vulnerability.
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Product
Vendor
Name
Version
License
Website
- Vendor: https://www.apache.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.1
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: DeserializationCWE: CWE-502 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Tapestry 5.6.2/5.7.1
Timeline
03/01/2021 🔍04/15/2021 🔍
04/15/2021 🔍
04/21/2021 🔍
Sources
Vendor: apache.orgAdvisory: openwall.com
Status: Confirmed
CVE: CVE-2021-27850 (🔍)
GCVE (CVE): GCVE-0-2021-27850
GCVE (VulDB): GCVE-100-173110
Entry
Created: 04/15/2021 19:52Updated: 04/21/2021 13:56
Changes: 04/15/2021 19:52 (38), 04/21/2021 13:56 (5)
Complete: 🔍
Cache ID: 216::103
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