SAP NetWeaver AS ABAP up to 752 Reconciliation Framework code injection

Summaryinfo

A vulnerability identified as critical has been detected in SAP NetWeaver AS ABAP up to 752. This impacts an unknown function of the component Reconciliation Framework. This manipulation causes code injection. This vulnerability appears as CVE-2021-33678. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability has been found in SAP NetWeaver AS ABAP up to 752 (Solution Stack Software) and classified as critical. Affected by this vulnerability is some unknown functionality of the component Reconciliation Framework. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A function module of SAP NetWeaver AS ABAP (Reconciliation Framework), versions - 700, 701, 702, 710, 711, 730, 731, 740, 750, 751, 752, 75A, 75B, 75B, 75C, 75D, 75E, 75F, allows a high privileged attacker to inject code that can be executed by the application. An attacker could thereby delete some critical information and could make the SAP system completely unavailable.

The weakness was presented 01/27/2023 as 167229. The advisory is shared at seclists.org. This vulnerability is known as CVE-2021-33678 since 05/28/2021. The attack can be launched remotely. A single authentication is required for exploitation. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

It is possible to download the exploit at packetstormsecurity.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Solution Stack Software

Vendor

• SAP

Name

• NetWeaver AS ABAP

Version

• 700
• 701
• 702
• 710
• 711
• 730
• 731
• 740
• 750
• 751
• 752

License

• commercial

Website

• Vendor: https://www.sap.com/

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