CVE-2021-4473
CriticalSummary
System Zarządzania Zachowaniem w Internecie Tianxin zawiera podatność na wstrzykiwanie poleceń w punkcie końcowym komponentu Reporter, która pozwala nieautoryzowanym atakującym na wykonywanie dowolnych poleceń poprzez dostarczenie spreparowanego parametru objClass zawierającego metaznaki powłoki oraz przekierowanie wyjścia. Atakujący mogą wykorzystać tę podatność do zapisywania złośliwych plików PHP w katalogu głównym serwera WWW i osiągnięcia zdalnego wykonania kodu z uprawnieniami procesu serwera WWW.
Risk Assessment
Wykorzystanie tej podatności może prowadzić do zdalnego wykonania kodu, co stwarza poważne zagrożenie dla bezpieczeństwa systemu oraz danych organizacji. Atakujący mogą uzyskać pełną kontrolę nad serwerem, co może skutkować utratą danych lub kompromitacją systemu.
Recommendation
Zaleca się aktualizację do wersji NACFirmware_4.0.0.7_20210716.180815_topsec_0_basic.bin, która naprawia tę podatność. Dodatkowo, warto przeprowadzić audyt bezpieczeństwa systemu oraz monitorować logi w celu wykrycia potencjalnych prób wykorzystania tej luki.
Related vulnerabilities
- CVE-2026-96207Critical
Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-94510Critical
Authorization bypass through user-controlled key in Microsoft Bookings allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-88131Critical
Deserialization of untrusted data in Microsoft Dataverse allows an unauthorized attacker to execute code over a network.
- CVE-2026-77900Critical
Missing authentication for a critical function in Azure App Service allows an unauthorized attacker to execute code over a network.
- CVE-2026-69435Critical
Missing authorization in Azure SRE Agent allows an authorized attacker to elevate privileges over a network.
- CVE-2026-84249Critical
IBM Guardium Data Protection 12.2 and 12.2.2 could allow a remote attacker to execute arbitrary management operations due to missing authentication for a critical function.
- CVE-2026-80381Critical
IBM Guardium Data Protection 12.0, 12.1, and 12.2 could allow a remote attacker to execute unauthorized SQL statements due to SQL injection.
- CVE-2026-75875Critical
IBM Guardium Data Protection 12.0, 12.1, and 12.2 could allow a remote attacker to execute arbitrary code due to path traversal.
- CVE-2026-107726Critical
Hazelcast prior to 5.4.5, 5.5.10, and 5.6.1 contains improper validation of data supplied by a malicious client able to connect to a cluster, allowing arbitrary reads from a cluster member's Java heap, off-heap data, and JVM process address space. The same flaw can crash cluster members and, in some Hazelcast Enterprise Edition configurations, corrupt memory with possible arbitrary code execution. This issue is fixed in versions 5.4.5, 5.5.10, 5.6.1, and 5.7.0.
- CVE-2026-107722Critical
fast-jwt from 6.2.0 until 6.3.0 can misclassify RSA public-key text as an HMAC secret when the key has non-whitespace content before its PEM header. In src/crypto.js, performDetectPublicKeyAlgorithms trims whitespace but publicKeyPemMatcher remains start-anchored, so comments, control characters, zero-width characters, or wrapper text can prevent PEM detection and reach the HMAC fallback. An attacker who knows the public key bytes can sign arbitrary HS256 claims with that public material when HS256 is inferred or allowed, resulting in authentication or authorization bypass. An asymmetric-only algorithm allowlist prevents the attack. This issue is fixed in version 6.3.0.
Original NVD description (English source)
Tianxin Internet Behavior Management System contains a command injection vulnerability in the Reporter component endpoint that allows unauthenticated attackers to execute arbitrary commands by supplying a crafted objClass parameter containing shell metacharacters and output redirection. Attackers can exploit this vulnerability to write malicious PHP files into the web root and achieve remote code execution with the privileges of the web server process. This vulnerability has been fixed in version NACFirmware_4.0.0.7_20210716.180815_topsec_0_basic.bin. Exploitation evidence was first observed by the Shadowserver Foundation on 2024-06-01 (UTC).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

