Cisco FireSIGHT System Software 5.3.0/5.3.1/5.4.0/6.0/6.0.1 Snort Rule HTTP Header input validation

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Cisco FireSIGHT System Software 5.3.0/5.3.1/5.4.0/6.0/6.0.1 and classified as critical. Affected by this issue is an unknown code of the component Snort Rule Handler. The manipulation as part of a HTTP Header leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Cisco FireSIGHT System Software 5.3.0, 5.3.1, 5.4.0, 6.0, and 6.0.1 allows remote attackers to bypass Snort rules via crafted parameters in the header of an HTTP packet, aka Bug ID CSCuz20737.

The weakness was shared 07/28/2016 with Cisco as CSCuz20737 as confirmed advisory (Website). The advisory is available at This vulnerability is handled as CVE-2016-1463 since 01/04/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 09/09/2022).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 92152†). The entries VDB-75868, VDB-76503, VDB-80293 and VDB-80294 are related to this item.







  • end of life (old version)

CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
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NVD Base Score: 7.5
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Class: Input validation

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Price Prediction: 🔍
Current Price Estimation: 🔍


OpenVAS ID: 65158
OpenVAS Name: Cisco FireSIGHT System Software Snort Rule Bypass Vulnerability
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: no mitigation known
Status: 🔍


01/04/2016 🔍
07/27/2016 +205 days 🔍
07/27/2016 +0 days 🔍
07/28/2016 +1 days 🔍
07/28/2016 +0 days 🔍
09/09/2022 +2234 days 🔍



Advisory: CSCuz20737
Organization: Cisco
Status: Confirmed

CVE: CVE-2016-1463 (🔍)
SecurityFocus: 92152 - Cisco FireSIGHT System Software CVE-2016-1463 Remote Security Bypass Vulnerability
SecurityTracker: 1036471

See also: 🔍


Created: 07/28/2016 12:42 PM
Updated: 09/09/2022 02:45 PM
Changes: 07/28/2016 12:42 PM (55), 03/11/2019 08:51 PM (12), 09/09/2022 02:45 PM (2)
Complete: 🔍
Cache ID: 44:CB7:40


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