CVE-2021-33684
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I. Basic Information for CVE-2021-33684
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
SAP NetWeaver AS ABAP and ABAP Platform, versions - KRNL32NUC 7.21, 7.21EXT, 7.22, 7.22EXT, KRNL32UC 7.21, 7.21EXT, 7.22, 7.22EXT, KRNL64NUC 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49, KRNL64UC 8.04, 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49, 7.53, KERNEL 8.04, 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49, 7.53, 7.77, 7.81, 7.84, allows an attacker to send overlong content in the RFC request type thereby crashing the corresponding work process because of memory corruption vulnerability. The work process will attempt to restart itself after the crash and hence the impact on the availability is low.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
SAP NetWeaver AS ABAP 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SAP NetWeaver AS是德国思爱普（SAP）公司的一款SAP网络应用服务器。它不仅能提供网络服务，且还是SAP软件的基本平台。 SAP NetWeaver AS ABAP和ABAP Platform 存在安全漏洞，该漏洞源于产品存在内存损坏漏洞。以下产品及版本受到影响： SAP NetWeaver AS ABAP and ABAP Platform, Versions - KRNL32NUC 7.21, 7.21EXT, 7.22, 7.22EXT, KRNL32UC 7.21, 7.21EXT
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| SAP SE | SAP NetWeaver AS ABAP and ABAP Platform | < KRNL32NUC 7.21 | - |
II. Public POCs for CVE-2021-33684
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://launchpad.support.sap.com/#/notes/3032624x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-33684
Same Patch Batch · SAP SE · 2021-07-14 · 13 CVEs total
| CVE-2021-33682 | SAP Lumira 跨站脚本漏洞 | |
| CVE-2021-33687 | SAP NetWeaver AS 信息泄露漏洞 | |
| CVE-2021-33683 | SAP Web Dispatcher 和 Internet Communication Manager 环境问题漏洞 | |
| CVE-2021-33689 | SAP NetWeaver AS 安全漏洞 | |
| CVE-2021-33678 | SAP NetWeaver AS ABAP 代码注入漏洞 | |
| CVE-2021-33670 | SAP NetWeaver AS 安全漏洞 | |
| CVE-2021-33681 | SAP 3D Visual Enterprise Viewer 缓冲区错误漏洞 | |
| CVE-2021-33677 | SAP NetWeaver AS ABAP 安全漏洞 | |
| CVE-2021-33676 | SAP CRM 安全漏洞 | |
| CVE-2021-33680 | SAP 3D Visual Enterprise Viewer 安全漏洞 | |
| CVE-2021-33671 | SAP NetWeaver 安全漏洞 | |
| CVE-2021-33667 | SAP Business Objects Web Intelligence 安全漏洞 |
IV. Related Vulnerabilities
Same product: SAP NetWeaver AS ABAP and ABAP Platform
- CVE-2026-23687
XML Signature Wrapping in SAP NetWeaver AS ABAP and ABAP Pla - CVE-2025-42902
Memory Corruption vulnerability in SAP Netweaver AS ABAP and - CVE-2025-0063
SQL Injection vulnerability in SAP NetWeaver AS for ABAP and - CVE-2024-30218
Denial of service (DOS) vulnerability in SAP NetWeaver AS AB - CVE-2023-37492
Missing Authorization check in SAP NetWeaver AS ABAP and ABA
Same vendor: SAP SE
- CVE-2025-42956
Multiple vulnerabilities in SAP NetWeaver Application Server - CVE-2023-36920
Clickjacking vulnerability in SAP Enable Now - CVE-2023-40307
Privileges Memory Corruption (Out-of-bound write) - CVE-2023-40306
URL Redirection vulnerability in SAP S/4HANA (Manage Catalog - CVE-2022-41211
SAP 3D Visual Enterprise Viewer和SAP 3D Visual Enterprise Aut
V. Comments for CVE-2021-33684
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