dubbo CVEs · Mitigation candidate

VRT Sign in

Look up CVE IDs Status Exploitation Severity

Reset

Overview 1 match · 0 protected · 0 exploited · 0 CISA KEV · 0 EPSS ≥ 0.5

1match 0protected0.0% 0exploited0.0% 0CISA KEV0.0% 0EPSS ≥ 0.50.0%

Protected by Waratek 0 0.0% Rule in development 0 0.0% Mitigation candidate 1 100.0% No exploit published 0 0.0%

Critical 1 100.0% High 0 0.0% Medium 0 0.0% Low 0 0.0% None 0 0.0% Unknown 0 0.0%

blocked by ARMR today 0 0.0% partly blocked 0 0.0% not blocked 1 100.0% not established 0 0.0% unrecorded 0 0.0%

Exploited 0 0.0% Working exploit published 0 0.0% Proof of concept only 1 100.0% Forecast only 0 0.0% No public exploit 0 0.0%

split by StatusSeverityProtectionExploit maturity peak 1 / month

Jun 211 Mitigation candidate1 Critical1 not blocked1 Proof of concept only1

Jun 21

1 match Sign in to download these CVEs as CSV or JSON, or to follow them in a feed.

CVE	Severity	Published▾	Status	Exploitation	Description
CVE-2021-25641	Critical	2021-06-01	Mitigation candidate	Proof of concept only	Each Apache Dubbo server will set a serialization id to tell the clients which serialization protocol it is working on. But for Dubbo versions before 2.7.8 or 2.6.9, an attacker can choose which serialization id the Provider will use by tampering with the byte preamble flags, aka, not following the server's instruction. This means that if a weak deserializer such as the Kryo and FST are somehow in code scope (e.g. if Kryo is somehow a part of a dependency), a remote unauthenticated attacker can tell the Provider to use the weak deserializer, and then proceed to exploit it.

CVE

Severity

Published▾

Status

Exploitation

Description

CVE-2021-25641

Critical

2021-06-01

Mitigation candidate

Proof of concept only

Each Apache Dubbo server will set a serialization id to tell the clients which serialization protocol it is working on. But for Dubbo versions before 2.7.8 or 2.6.9, an attacker can choose which serialization id the Provider will use by tampering with the byte preamble flags, aka, not following the server's instruction. This means that if a weak deserializer such as the Kryo and FST are somehow in code scope (e.g. if Kryo is somehow a part of a dependency), a remote unauthenticated attacker can tell the Provider to use the weak deserializer, and then proceed to exploit it.