Suricata up to 2.0.5 HTTP Request MemcmpLowercase access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Suricata up to 2.0.5. The affected element is the function MemcmpLowercase of the component HTTP Request Handler. The manipulation leads to access control. This vulnerability is documented as CVE-2015-8954. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Suricata up to 2.0.5. This issue affects the function MemcmpLowercase of the component HTTP Request Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The MemcmpLowercase function in Suricata before 2.0.6 improperly excludes the first byte from comparisons, which might allow remote attackers to bypass intrusion-prevention functionality via a crafted HTTP request.

The bug was discovered 01/15/2015. The weakness was released 03/20/2017 (Website). It is possible to read the advisory at bugs.debian.org. The identification of this vulnerability is CVE-2015-8954 since 08/28/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 795 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.0.6 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Suricata 2.0.6

Timelineinfo

01/15/2015 🔍
08/28/2016 +591 days 🔍
03/20/2017 +204 days 🔍
03/20/2017 +0 days 🔍
03/21/2017 +1 days 🔍
09/10/2020 +1269 days 🔍

Sourcesinfo

Advisory: bugs.debian.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8954 (🔍)
GCVE (CVE): GCVE-0-2015-8954
GCVE (VulDB): GCVE-100-98291
OSVDB: - CVE-2015-8954 - Suricata - Security Bypass Issue

Entryinfo

Created: 03/21/2017 07:46
Updated: 09/10/2020 10:23
Changes: 03/21/2017 07:46 (58), 09/10/2020 10:23 (3)
Complete: 🔍
Cache ID: 216::103

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