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SAP Patches XSS, DoS Vulnerabilities

SAP on Tuesday released its latest patch update for its products, which includes 19 patch notes, 10 of which had a high priority rating.

SAP on Tuesday released its latest patch update for its products, which includes 19 patch notes, 10 of which had a high priority rating.

There were 16 security notes included in the latest SAP Security Patch Day, to which the company added three Out-of-Band Security Notes released this month. Furthermore, SAP also released seven Support Package Notes, ERPScan, a company specialized in securing SAP and Oracle business software, explains.

The highest CVSS score of the vulnerabilities patched in the new round of updates is 7.5. Overall, SAP resolved five Cross-Site Scripting (XSS) issues in its products, 4 denial of service (DoS) vulnerabilities, 3 missing authorization checks, one Remote Command Execution (RCE) vulnerability, one SQL Injection, one information disclosure flaw, along with 4 other bugs.

Two of the DoS vulnerabilities included in SAP’s off-schedule patches were discovered by ERPScan’s Dmitry Yudin and were presented at the Troopers Security conference on March 16, two days after they were resolved.

Among the SAP vulnerabilities found by ERPScan researchers, we can count DoS vulnerabilities in SAP Enqueue Server (CVSS Base Score: 7.5), SAP Internet Communication Manager (CVSS Base Score: 7.5), and SAP jstart (CVSS Base Score: 7.5), along with an XML external entity vulnerability in SAP UDDI (CVSS Base Score: 7.1), and an XSS vulnerability in SAP UR Control (CVSS Base Score: 6.1).

By exploiting the SAP Enqueue Server flaw, an attacker could terminate a process of the vulnerable component, the researcher explained. The SAP UDDI issue can be exploited by sending a specially crafted unauthorized XML requests to get unauthorized access to OS filesystem, while the XSS in SAP UR Control could allow an attacker to inject a malicious script into a page.

Other critical issues resolved by SAP include a DoS bug in SAP HANA DP Agent (CVSS Base Score: 7.5), which could result in termination of the vulnerable component’s process, along with a Missing authorization check in SAP HANA DP Agent (CVSS Base Score: 7.3), which could allow an attacker to access a service without authorization and use service functionality that has restricted access. The flaw can lead to information disclosure, privilege escalation, and other attacks.

Additionally, SAP patched a remote command execution vulnerability in SAP HANA XS Advanced Java Runtime (CVSS Base Score: 7.3), which could be exploited to execute commands remotely without authorization. ERPScan explains that the executed commands will run with the same privileges as the service that executed the command.

“An attacker can access arbitrary files and directories located in a SAP server filesystem including application source code, configuration, and critical system files. It allows obtaining critical technical and business-related information stored in the vulnerable SAP system,” the researchers also explain.

SAP customers are advised to apply the new updates as soon as possible to patch the vulnerabilities and prevent business risks affecting SAP systems. Additional details on the SAP Security Notes are available on the SAP Support Portal.

Related: SAP Patches 28 Vulnerabilities Across Multiple Products

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