Source: cve@mitre.org
Hybris Management Console (HMC) in SAP Hybris before 6.0 allows remote attackers to obtain sensitive information by triggering an error and then reading a Java stack trace.
SAP Hybris Management Console (HMC) versions prior to 6.0 are vulnerable to a remote information disclosure attack. Attackers can exploit an error-handling flaw to obtain sensitive information, including internal system details and potentially credentials, by triggering a specific error condition and subsequently reading a Java stack trace. This vulnerability poses a significant risk as it can lead to further compromise of the system.
Step 1: Target Identification: Identify a vulnerable SAP Hybris HMC instance (version before 6.0). Step 2: Error Triggering: Craft a malicious request or input that triggers a specific error condition within the HMC. This could involve manipulating input fields, submitting invalid data, or attempting unauthorized actions. Step 3: Error Generation: The crafted input causes the HMC to generate an exception. Step 4: Stack Trace Disclosure: Due to the lack of proper error handling, the HMC displays a detailed Java stack trace in the response, revealing sensitive information. Step 5: Information Harvesting: The attacker analyzes the stack trace to extract valuable information, such as internal file paths, class names, and potentially credentials or other sensitive data.
The vulnerability stems from inadequate error handling within the SAP Hybris Management Console (HMC). Specifically, the application fails to sanitize or properly handle exceptions, leading to the disclosure of detailed stack traces when specific errors are triggered. These stack traces contain sensitive information, including class names, file paths, and potentially even credentials or other internal system details. The root cause is a lack of proper input validation and error handling, allowing attackers to manipulate the application's behavior and force it to reveal sensitive information through the stack trace. This is a classic example of an information disclosure vulnerability due to insufficient security practices during exception handling.
While specific APT groups are not directly linked to this CVE, the nature of the vulnerability makes it attractive to various threat actors. The information disclosure could be a stepping stone for further attacks, such as credential harvesting or lateral movement. This vulnerability could be leveraged by attackers to gain initial access or escalate privileges. This CVE is not listed in the CISA KEV.
Analyze HMC server logs for unusual error messages or stack traces, especially those related to user input or authentication attempts.
Monitor network traffic for suspicious requests to the HMC, particularly those containing malformed data or unusual parameters.
Implement file integrity monitoring to detect any unauthorized changes to HMC configuration files or application code.
Use a Web Application Firewall (WAF) to filter out malicious requests and prevent exploitation attempts.
Review the application's error handling configuration to ensure that stack traces are not exposed to the public.
Upgrade to SAP Hybris version 6.0 or later.
Implement proper input validation to prevent the triggering of errors.
Configure the HMC to handle exceptions gracefully and prevent the disclosure of stack traces. This includes disabling detailed error messages in production environments.
Review and harden the HMC configuration to minimize the attack surface.
Implement a Web Application Firewall (WAF) to filter malicious requests.
Regularly scan the system for vulnerabilities and apply security patches promptly.