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CVE-2016-1929: SAP Hana: Denial of service

CVE-2016-1929 is rated critical with a CVSS v3.0 base score of 9.3 and affects SAP Hana. Per its scoring, it can be exploited over the network, without authentication, without any user interaction.

Vulnerability description

The XS engine in SAP HANA allows remote attackers to spoof log entries in trace files and consequently cause a denial of service (disk consumption and process crash) via a crafted HTTP request, related to an unspecified debug function, aka SAP Security Note 2241978.

Severity breakdown

CVSS v3.0 9.3: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H

• Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
• Attack complexity: Low. No special conditions; the attack can be repeated reliably.
• Privileges required: None. No account or prior access is needed.
• User interaction: None. No action from any user is needed.
• Scope: Changed. Impact reaches beyond the vulnerable component to other resources.
• Confidentiality impact: None. No loss of confidentiality.
• Integrity impact: Low. Some data can be modified.
• Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-20: Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Affected products

• SAP Hana: all versions listed by NVD

References

• http://seclists.org/fulldisclosure/2016/Apr/59
• https://erpscan.io/advisories/erpscan-16-002-sap-hana-log-injection-and-no-size-restriction/
• https://erpscan.io/press-center/blog/sap-security-notes-january-2016-review/