CVE-2021-33577

low-risk
Published 2021-06-18

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.

Do I need to act?

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0.11% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Cleo

References (4)

Exploit https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0011.md
Product https://www.cleo.com/cleo-lexicom
Exploit https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0011.md
Product https://www.cleo.com/cleo-lexicom
26
/ 100
low-risk
Severity 21/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal