CodeIgniter up to 2.1.x mcrypt Extension cryptographic issue

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.4	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in CodeIgniter up to 2.1.x. Impacted is an unknown function of the component mcrypt Extension. The manipulation leads to cryptographic issue. This vulnerability is traded as CVE-2014-8686. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in CodeIgniter up to 2.1.x. This issue affects an unknown code of the component mcrypt Extension. The manipulation with an unknown input leads to a cryptographic issue vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

CodeIgniter before 2.2.0 makes it easier for attackers to decode session cookies by leveraging fallback to a custom XOR-based encryption scheme when the Mcrypt extension for PHP is not available.

The bug was discovered 03/02/2015. The weakness was shared 09/19/2017 (Website). It is possible to read the advisory at codeigniter.com. The identification of this vulnerability is CVE-2014-8686 since 11/09/2014. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

The exploit is available at exploit-db.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 932 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.2.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (36264). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• CodeIgniter

Version

• 2.0
• 2.1

License

• open-source

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

MetaSploit ID: seagate_nas_php_exec_noauth.rb
MetaSploit Name: Seagate Business NAS Unauthenticated Remote Command Execution
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CodeIgniter 2.2.0

Timelineinfo

11/09/2014 🔍
03/02/2015 +113 days 🔍
09/19/2017 +932 days 🔍
09/19/2017 +0 days 🔍
09/20/2017 +1 days 🔍
01/10/2025 +2669 days 🔍

Sourcesinfo

Advisory: 130609
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-8686 (🔍)
GCVE (CVE): GCVE-0-2014-8686
GCVE (VulDB): GCVE-100-106859
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/20/2017 23:09
Updated: 01/10/2025 02:39
Changes: 09/20/2017 23:09 (60), 11/17/2019 20:31 (2), 12/29/2022 14:11 (4), 01/10/2025 02:39 (20)
Complete: 🔍
Cache ID: 216::103

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

Discussion

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