CVE-2021-33577

EUVD-2021-20263
An issue was discovered in Cleo LexiCom 5.5.0.0. The requirement for the sender of an AS2 message to identify themselves (via encryption and signing of the message) can be bypassed by changing the Content-Type of the message to text/plain.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 30%
Affected Products (NVD)
VendorProductVersion
cleolexicom
5.5.0.0
𝑥
= Vulnerable software versions
References
https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0011.md
https://www.cleo.com/cleo-lexicom
https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0011.md
https://www.cleo.com/cleo-lexicom