Username Enumeration Vulnerability in ServiceNow Orlando by ServiceNow
CVE-2021-45901

5.3MEDIUM

Key Information:

Vendor

Servicenow

Status
Servicenow
Vendor
CVE Published:
10 February 2022

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 29%

What is CVE-2021-45901?

The password-reset functionality in ServiceNow Orlando exhibits a username enumeration vulnerability. This flaw allows attackers to determine the existence of user accounts based on different response behaviors provided during authentication attempts. Specifically, when an invalid username is entered, the application reveals whether the username is valid based on the responses from the server. This can potentially allow malicious users to compile a list of existing usernames within the system, increasing the risk of targeted attacks.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-45901
Created by 9lyph

References

https://www.trustwave.com/en-us/resources/security-resour...
x_refsource_MISC
https://www.trustwave.com/en-us/resources/blogs/spiderlab...
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http://packetstormsecurity.com/files/165989/ServiceNow-Or...
x_refsource_MISC

EPSS Score

29% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

.
CVE-2021-45901 : Username Enumeration Vulnerability in ServiceNow Orlando by ServiceNow