CVE-2021-40126
published 2021-11-04CVE-2021-40126: A vulnerability in the web-based dashboard of Cisco Umbrella could allow an authenticated, remote attacker to perform an email enumeration attack against the…
PriorityP423medium4.3CVSS 3.1
AVNACLPRLUINSUCLINAN
EPSS
0.84%
53.4th percentile
A vulnerability in the web-based dashboard of Cisco Umbrella could allow an authenticated, remote attacker to perform an email enumeration attack against the Umbrella infrastructure. This vulnerability is due to an overly descriptive error message on the dashboard that appears when a user attempts to modify their email address when the new address already exists in the system. An attacker could exploit this vulnerability by attempting to modify the user's email address. A successful exploit could allow the attacker to enumerate email addresses of users in the system.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_umbrella_insights_virtual_appliance | — | — |
| cisco | umbrella_email_enumeration | — | — |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:P/I:N/A:N
vendor_cisco4.3MEDIUM
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Cisco
Cisco Umbrella Email Enumeration Vulnerability
vendor_cisco·2021-11-03·CVSS 4.3
CVE-2021-40126 [MEDIUM] CWE-210 Cisco Umbrella Email Enumeration Vulnerability
Cisco Umbrella Email Enumeration Vulnerability
A vulnerability in the web-based dashboard of Cisco Umbrella could allow an authenticated, remote attacker to perform an email enumeration attack against the Umbrella infrastructure.
This vulnerability is due to an overly descriptive error message on the dashboard that appears when a user attempts to modify their email address when the new address already exists in the system. An attacker could exploit this vulnerability by attempting to modify the user's email address. A successful exploit could allow the attacker to enumerate email addresses of users in the system.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
This advisory is available at the following link:h
Cisco
Cisco Umbrella Email Enumeration Vulnerability
vendor_cisco·CVSS 3.1
CVE-2021-40126 Cisco Umbrella Email Enumeration Vulnerability
CVE-2021-40126: Cisco Umbrella Email Enumeration Vulnerability
A vulnerability in the web-based dashboard of Cisco Umbrella could allow an authenticated, remote attacker to perform an email enumeration attack against the Umbrella infrastructure. This vulnerability is due to an overly descriptive error message on the dashboard that appears when a user attempts to modify their email address when the new address already exists in the system. An attacker could exploit this vulnerability by attempting to modify the user's email address. A successful exploit could allow the attacker to enumerate email addresses of users in the system. Cisco has released software updates that address this vulnerability. There are no
CVSS: 3.1
CWE: CWE-210, CWE-210
Bug IDs: CSCvz11942
GHSA
GHSA-qh32-c3pp-x33g: A vulnerability in the web-based dashboard of Cisco Umbrella could allow an authenticated, remote attacker to perform an email enumeration attack agai
ghsa_unreviewed·2022-05-24
CVE-2021-40126 [MEDIUM] CWE-209 GHSA-qh32-c3pp-x33g: A vulnerability in the web-based dashboard of Cisco Umbrella could allow an authenticated, remote attacker to perform an email enumeration attack agai
A vulnerability in the web-based dashboard of Cisco Umbrella could allow an authenticated, remote attacker to perform an email enumeration attack against the Umbrella infrastructure. This vulnerability is due to an overly descriptive error message on the dashboard that appears when a user attempts to modify their email address when the new address already exists in the system. An attacker could exploit this vulnerability by attempting to modify the user's email address. A successful exploit could allow the attacker to enumerate email addresses of users in the system.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-11-04
Published