Vulnerability · Published May 6, 2021 · Assigned by cisco

CVE-2021-1486Cisco SD-WAN vManage HTTP Authentication User Enumeration Vulnerability

Medium 5.3

In plain English

A medium-severity security flaw in Cisco SD-WAN vManage from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)1.2%top 31.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability in Cisco SD-WAN vManage Software could allow an unauthenticated, remote attacker to enumerate user accounts. This vulnerability is due to the improper handling of HTTP headers. An attacker could exploit this vulnerability by sending authenticated requests to an affected system. A successful exploit could allow the attacker to compare the HTTP responses that are returned by the affected system to determine which accounts are valid user accounts.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco SD-WAN vManage	n/a

Weakness: CWE-203 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

20210505 Cisco SD-WAN vManage HTTP Authentication User Enumeration Vulnerability vendor-advisory, x_refsource_CISCO