Cisco Secure Email Gateway SQL Injection Enables Unauthenticated Root Code Execution
Baseado só no resumo do feed. O site da fonte não liberou o texto completo para o Tifon, então esta análise saiu apenas do resumo publicado no feed e pode estar incompleta. Ela é atualizada quando outra fonte cobrir o assunto. Ler na fonte original ↗
Cisco disclosed a critical SQL injection vulnerability (CVE-2026-76461) in the email parsing logic of AsyncOS Software for Cisco Secure Email Gateway. An unauthenticated, remote attacker can exploit the flaw by sending a specially crafted email containing malicious SQL statements to an affected device, resulting in arbitrary SQL execution that escalates to arbitrary command execution with root privileges on the underlying operating system. Cisco has released software updates to address the issue and states that no workarounds are available.
Entenda a falha
A vulnerabilidade
CVE-2026-76461 is a critical SQL injection in the email parsing of Cisco AsyncOS Software for Cisco Secure Email Gateway. An unauthenticated, remote attacker only needs to get a crafted email containing malicious SQL statements through an affected device. A successful exploit runs arbitrary SQL statements and leads to command execution with root privileges on the underlying operating system. Cisco says it has released software updates and that no workarounds exist. The articles do not list affected or fixed version numbers, so check the Cisco advisory cisco-sa-esa-inj-2bLVGmhX.
Como funciona
An email message arrives at and passes through the Secure Email Gateway, and the AsyncOS email parsing logic processes its content. The crafted message carries SQL statements that the parsing logic fails to validate properly. The device then runs those statements as SQL. The flaw is at that step: data from the email is treated as SQL, and this gives the attacker command execution as root on the operating system. The articles do not describe the intermediate steps between SQL execution and command execution.
Por que é vulnerável
The Cisco advisory attributes the flaw to insufficient validation in the email parsing logic, which lets SQL statements embedded in an email be processed by the device. The articles do not say why it went unnoticed or what exactly the fix changes, only that the software updates address the issue.
Onde está
The email parsing logic of AsyncOS Software on Cisco Secure Email Gateway; no file, function or commit is named.
Como foi descoberta
The articles do not say who found the flaw or how. Cisco disclosed it in a security advisory published on 2026-11-03, rated Critical, together with software updates. The articles do not mention exploitation in the wild.
Explicação gerada por IA a partir da matéria e dos artigos, em 03/11/2026 16:18.
Detalhes técnicos
The vulnerability stems from insufficient validation in the email parsing logic of Cisco Secure Email Gateway, allowing crafted SQL statements embedded in an email message to be processed by the device, leading to full OS-level command execution as root without requiring authentication.
Remediação
Cisco urges customers to apply the released software updates immediately, as no workarounds exist to mitigate this vulnerability.
Linha do tempo
-
sec.cloudapps.cisco.com ↗ · pub. 03/11/2026 14:05 · coletado 03/11 16:00 primeiro registro só resumo do feed
Cisco Secure Email Gateway SQL Injection Enables Unauthenticated Root Code Execution
ler a análise desta fonte ocultar
Cisco disclosed a critical SQL injection vulnerability (CVE-2026-76461) in the email parsing logic of AsyncOS Software for Cisco Secure Email Gateway. An unauthenticated, remote attacker can exploit the flaw by sending a specially crafted email containing malicious SQL statements to an affected device, resulting in arbitrary SQL execution that escalates to arbitrary command execution with root privileges on the underlying operating system. Cisco has released software updates to address the issue and states that no workarounds are available.
Technical Details
The vulnerability stems from insufficient validation in the email parsing logic of Cisco Secure Email Gateway, allowing crafted SQL statements embedded in an email message to be processed by the device, leading to full OS-level command execution as root without requiring authentication.
Remediation
Cisco urges customers to apply the released software updates immediately, as no workarounds exist to mitigate this vulnerability.