Saturday , June 21 2025
OPA Gatekeeper

OPA Gatekeeper Bypass Unveils Risks in Kubernetes Policy Engines

A recent Aqua Security report highlights major security risks in Kubernetes policy enforcement, especially with Open Policy Agent (OPA) Gatekeeper. Although OPA Gatekeeper is commonly used for security policies in Kubernetes, researchers found methods to bypass its controls due to frequent misconfigurations and weak policies.

Source: aquasec

According to the report, “Implementing Kubernetes securely can be a daunting task.” OPA Gatekeeper is an essential tool that provides out-of-the-box security policies for Kubernetes, but Aqua Security’s research highlights critical flaws that may allow attackers to evade restrictions. The report warns that “seemingly secure rules, such as those used in OPA Gatekeeper, can be bypassed if not carefully configured.”

Russia detects first SuperCard malware attacks via NFC

Russian cybersecurity experts discovered the first local data theft attacks using a modified version of legitimate near field communication (NFC)...
Read More
Russia detects first SuperCard malware attacks via NFC

Income Property Investments exposes 170,000+ Individuals record

Cybersecurity researcher Jeremiah Fowler discovered an unsecured database with 170,360 records belonging to a real estate company. It contained personal...
Read More
Income Property Investments exposes 170,000+ Individuals record

ALERT (CVE: 2023-28771)
Zyxel Firewalls Under Attack via CVE-2023-28771 by 244 IPs

GreyNoise found attempts to exploit CVE-2023-28771, a vulnerability in Zyxel's IKE affecting UDP port 500. The attack centers around CVE-2023-28771,...
Read More
ALERT (CVE: 2023-28771)  Zyxel Firewalls Under Attack via CVE-2023-28771 by 244 IPs

CISA Flags Active Exploits in Apple iOS and TP-Link Routers

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has recently included two high-risk vulnerabilities in its Known Exploited Vulnerabilities (KEV)...
Read More
CISA Flags Active Exploits in Apple iOS and TP-Link Routers

10K Records Allegedly from Mac Cloud Provider’s Customers Leaked Online

SafetyDetectives’ Cybersecurity Team discovered a public post on a clear web forum in which a threat actor claimed to have...
Read More
10K Records Allegedly from Mac Cloud Provider’s Customers Leaked Online

Canada 2nd largest airlines “WestJet” investigates cyberattack disrupting internal systems

WestJet, Canada's second-largest airline, is looking into a cyberattack that has affected some internal systems during its response to the...
Read More
Canada 2nd largest airlines “WestJet” investigates cyberattack disrupting internal systems

Paraguay 7.4 Million Citizen Records Leaked on Dark Web

Resecurity found 7.4 million records of Paraguayan citizens' personal information leaked on the dark web today. Last week, cybercriminals attempted...
Read More
Paraguay 7.4 Million Citizen Records Leaked on Dark Web

High-Severity Flaw in HashiCorp Nomad Allows Privilege Escalation

HashiCorp has revealed a critical vulnerability in its Nomad tool that may let attackers gain higher privileges by misusing the...
Read More
High-Severity Flaw in HashiCorp Nomad Allows Privilege Escalation

SoftBank: Over 137,000 personal info leaked

SoftBank has disclosed that personal information of more than 137,000 mobile subscribers—covering names, addresses, and phone numbers—might have been leaked...
Read More
SoftBank: Over 137,000 personal info leaked

Alert
Trend Micro Apex One Flaw Allow Attackers to Inject Malicious Code

Serious security vulnerabilities in Trend Micro Apex One could allow attackers to inject malicious code and elevate their privileges within...
Read More
Alert  Trend Micro Apex One Flaw Allow Attackers to Inject Malicious Code

A key vulnerability identified is the ability to bypass the k8sallowedrepos policy, which limits access to certain container image repositories. Researchers found that misconfigurations, like missing trailing slashes in policies, can allow unauthorized image pulls. “We found a way to bypass the k8sallowedrepos policy. If the user omits placing / at the end of the constraint repos value, this enables attackers to completely bypass the policy,” the report states.

Two major attack scenarios were demonstrated in the report:

Domain Bypass:

If an organization restricts images to my-ecr.azurecr.io, attackers can exploit the absence of a trailing slash by using a subdomain like my-ecr.azurecr.io.attacker.com. Kubernetes may mistakenly accept this as a valid source, circumventing security measures.

Docker Hub Namespace Bypass:

The report explains that attackers can create misleading repositories on Docker Hub, like “openpolicyagent-attacker,” to exploit poorly configured policies. It highlights a method called “namespace bypass,” allowing attackers to use repository names that match permitted values.

A major concern is the Rego policy logic in OPA Gatekeeper. The report notes that functions like any_prefix_match() can be misused to match unintended values, enabling attackers to deploy malicious containers. Using functions such as endswith(), startswith(), and any_prefix_match() on domains, repositories, or namespaces poses risks.

F5 Warns of TLS Session Resumption Vulnerability in NGINX

Check Also

FortiGate

Hackers retain access to patched FortiGate VPNs using symlinks

Recent incidents continue to bring this into focus with active exploitations of known vulnerabilities as …

Leave a Reply

Your email address will not be published. Required fields are marked *