Critical severity · published Jun 18, 2021
CVE-2021-33576
An issue was discovered in Cleo LexiCom 5.5.0.0
9.8
CVSS
1.5%
EPSS
No
On KEV
Description
An issue was discovered in Cleo LexiCom 5.5.0.0. Within the AS2 message, the sender can specify a filename. This filename can include path-traversal characters, allowing the file to be written to an arbitrary location on disk.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HA
Harmony · Cleo
5.5.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-33576
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-33576
Exploit
https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0011.md
Product
https://www.cleo.com/cleo-lexicom
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An issue was discovered in Cleo LexiCom 5.5.0.0