High severity · published Jul 5, 2022
CVE-2021-43116
An Access Control vulnerability exists in Nacos 2.0.3 in the access prompt page; enter username and password, click on login to capture packets and then change the returned…
8.8
CVSS
7.5%
EPSS
No
On KEV
Description
An Access Control vulnerability exists in Nacos 2.0.3 in the access prompt page; enter username and password, click on login to capture packets and then change the returned package, which lets a malicious user login.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.5% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NA
Nacos · Alibaba
through 2.0.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-43116
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-43116
packetstormsecurity.com
http://packetstormsecurity.com/files/171638/Nacos-2.0.3-Access-Control.html
Exploit
https://github.com/alibaba/nacos/issues/7127
Exploit
https://github.com/alibaba/nacos/issues/7182
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