PT-2026-49655 · Syracom Ag+1 · Secure Login+3
CVSS v4.0
8.7
High
| Vector | AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Name of the Vulnerable Software and Affected Versions
syracom AG Secure Login (2FA) for Atlassian Jira, Confluence, and Bitbucket versions 3.4.0.x
Description
An authentication bypass exists where an attacker with valid user credentials can circumvent the two-factor authentication (2FA) flow. By sending HTTP requests with a crafted
User-Agent header containing specific strings such as AtlassianMobileApp or JIRA, the plugin fails to enforce 2FA checks for protected web resources. This allows unauthorized access to the Atlassian application as the compromised user. If the account possesses administrative privileges, the attacker can access administrative functions, potentially disabling the 2FA plugin or making arbitrary changes.Recommendations
Update to version 3.5.0.0.
Fix
Authentication Bypass Using an Alternate Path or Channel
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Weakness Enumeration
Related Identifiers
Affected Products
Bitbucket
Confluence
Jira
Secure Login