PT-2017-2507 · Cisco · Cisco Ios Xe+1
CVE-2017-6743
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Publicado
2017-06-29
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Atualizado
2025-01-27
CVSS v2.0
9.0
Alta
| Vetor | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Cisco IOS versions 12.0 through 12.4 and 15.0 through 15.6
Cisco IOS XE versions 2.2 through 3.17
Description
The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload. An attacker could exploit these vulnerabilities by sending a crafted SNMP packet to an affected system via IPv4 or IPv6. The vulnerabilities are due to a buffer overflow condition in the SNMP subsystem of the affected software. The vulnerabilities affect all versions of SNMP: Versions 1, 2c, and 3. To exploit these vulnerabilities via SNMP Version 2c or earlier, the attacker must know the SNMP read-only community string for the affected system. To exploit these vulnerabilities via SNMP Version 3, the attacker must have user credentials for the affected system.
Recommendations
For Cisco IOS versions 12.0 through 12.4 and 15.0 through 15.6, update to a fixed software version as indicated by the Cisco IOS Software Checker.
For Cisco IOS XE versions 2.2 through 3.17, update to a fixed software version as indicated by the Cisco IOS Software Checker.
As a temporary workaround, consider disabling the SNMP subsystem until a patch is available.
Restrict access to the affected MIBs or OIDs to minimize the risk of exploitation.
Correção
Buffer Overflow
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Cisco Ios
Cisco Ios Xe