CSA: Why Is Google Ending Support for Less Secure Apps?

Source URL: https://cloudsecurityalliance.org/articles/app-specific-passwords-origins-functionality-security-risks-and-mitigation
Source: CSA
Title: Why Is Google Ending Support for Less Secure Apps?

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Summary: Google’s announcement to terminate support for Less Secure Apps (LSAs) highlights the importance of App-Specific Passwords (ASPs) and the lingering security concerns they carry. This transition marks a significant improvement in user authentication, yet sheds light on new vulnerabilities that organizations must address to enhance their security posture in an evolving digital landscape.

Detailed Description:
The article discusses Google’s decision to phase out Less Secure Apps (LSAs) and the introduction of App-Specific Passwords (ASPs) as a more secure alternative. While ASPs mitigate some risks associated with LSAs, they introduce new challenges that security professionals must navigate.

– **Background on LSAs**:
– LSAs were applications using username/password authentication, bypassing modern security frameworks like OAuth.
– They presented significant security risks, including unrestricted access to user accounts and interference with multi-factor authentication (MFA).

– **Introduction of App-Specific Passwords**:
– ASPs aim to better secure user accounts by allowing apps to gain access without sharing personal passwords.
– They limit actions an LSA can take (e.g., enabling reading but not sending emails) and allow for MFA enforcement separately from app access.

– **Remaining Security Concerns of ASPs**:
1. **MFA Bypass**: ASPs can access accounts with MFA enabled, undermining MFA’s protective capabilities.
2. **Lack of Visibility**: There is often no clear audit trail or oversight on ASP usage, complicating governance efforts within large organizations.
3. **Expanded Attack Surface**: Each ASP represents a potential vulnerability that attackers might exploit, gaining access to accounts without triggering existing security measures.

– **Mitigation Strategies**:
– Organizations should conduct audits to identify the presence and usage of ASPs.
– Detailed permissions should be mapped to OAuth scopes to understand access levels granted through ASPs.
– Regular monitoring and updating of security protocols encompass checking for outdated or unnecessary ASPs.

– **Steps to Identify ASPs**:
– Outline a step-by-step guide to locate ASPs through the Google Admin Console, emphasizing the labor intensity of auditing individual user accounts.
– Suggest automation of the process using specific Google API queries to streamline the identification of ASPs.

Overall, the transition from LSAs to ASPs is a step in the right direction for security, but organizations must stay vigilant. Increasing awareness of the risks associated with ASPs and implementing robust monitoring and governance will be essential for mitigating potential vulnerabilities in cloud environments. This discussion is particularly pertinent for security and compliance professionals who manage access controls and seek to prevent unauthorized access across various applications and services.