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5.8 Medium

CVE-2021-1494 Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an…

Description

Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect handling of specific HTTP header parameters. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass a configured file policy for HTTP packets and deliver a malicious payload.

Affected products and versions

Product Affected versions Fixed in
Cisco Firepower Threat Defense Software Versions not published
Cisco UTD SNORT IPS Engine Software 17.3 17.3.1a → 17.3.2 No fix stated
Cisco UTD SNORT IPS Engine Software 17.2.1r No fix stated
Cisco UTD SNORT IPS Engine Software 17.1.1 No fix stated
Cisco UTD SNORT IPS Engine Software 16.12 16.12.1a → 16.12.4 No fix stated
Cisco UTD SNORT IPS Engine Software 16.6 16.6.1 → 16.6.9 No fix stated
Cisco UTD SNORT IPS Engine Software 3.17 3.17.0S → 3.17.1S No fix stated
firepower_threat_defense_software 6.7 6.7.0 → < 6.7.0.2 6.7.0.2
firepower_threat_defense_software 6.5 6.5.0 → < 6.6.4 6.6.4
Show the 4 other branches
Product Affected versions Fixed in
firepower_threat_defense_software 6.4 earliest → < 6.4.0.12 6.4.0.12
utd_snort_ips_engine_software 17.4 17.4 → < 17.4.1 17.4.1
utd_snort_ips_engine_software 17.1 17.1 → < 17.3.3 17.3.3
utd_snort_ips_engine_software 16.12 earliest → < 16.12.5 16.12.5

References

Timeline

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