2025/09/24 00:54:27

Strengthening Software Supply Chain Security Against Code Repository Attacks

Avocado Consulting is urging Australian organisations to bolster the security of their software supply chains in response to a recent high alert from the Australian Cyber Security Center (ACSC) regarding code repository attacks.

The ACSC’s Warning

The ACSC’s high alert details ongoing threats targeting online code repositories. These attacks leverage social engineering, compromised credentials and authentication tokens, and manipulation of software packages. These tactics pose a significant risk to organizations relying on these repositories for their software progress lifecycle.

Understanding the Risks in Code Repositories

Dennis baltazar, Principal Cloud and DevSecOps solutions at Avocado Consulting, stresses the gravity of the risks associated with online code repositories. The evolving nature of these attacks makes malicious activity increasingly challenging to identify.

Attackers are no longer solely relying on sophisticated malware. Instead, they are employing more subtle and deceptive techniques.

“What’s significant here is not just attacker capability but attacker tradecraft. this wave of repository targeting blends social engineering living-off-the-land (LOTL) techniques – abusing legitimate tools and workflows so malicious activity looks like business as usual,” says Dennis Baltazar. “Attackers don’t need bespoke malware when they can exploit existing system permissions and processes.”

Living-Off-the-Land (LOTL) Techniques

living-Off-The-Land (LOTL) techniques are a particularly concerning trend. This approach involves attackers using legitimate system tools and processes to carry out malicious activities. becuase these tools are already present and authorized,their misuse can be difficult to detect. This makes it crucial for organizations to monitor system activity closely and establish robust security baselines.

What Organizations Should Do

Avocado Consulting recommends that Australian organizations take the following steps to strengthen their software supply chain security:

• Implement Strong Authentication: Enforce multi-factor authentication (MFA) for all access to code repositories. The ACSC provides guidance on MFA implementation.
• Credential Management: regularly rotate credentials and avoid hardcoding them in code. utilize secure credential management systems.
• Access control: Apply the principle of least privilege, granting users only the access they need to perform their duties.
• Supply Chain Security Tools: Implement Software Composition Analysis (SCA) tools to identify vulnerabilities in third-party components.
• Monitoring and Logging: Establish extensive monitoring and logging of all activity within code repositories.
• employee Training: Educate developers and other personnel about the risks of social engineering and phishing attacks.
• Regular Security Audits: conduct regular security audits of code repositories and related systems.

Key Takeaways

• Code repository attacks are increasing in frequency and sophistication.
• Attackers are increasingly using Living-Off-The-Land (LOTL) techniques to evade detection.
• Strong authentication, access control, and monitoring are essential for protecting code repositories.
• Organizations must proactively address software supply chain security risks.

The threat landscape is constantly evolving. Organizations must remain vigilant and adapt their security measures accordingly. By taking proactive steps to secure their software supply chains, Australian organizations can significantly reduce their risk of falling victim to code repository attacks.