ZyXEL SBG-3300 1.00(AADY.4)C0 framLoad input validation

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.
4.8$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in ZyXEL SBG-3300 1.00(AADY.4)C0. This affects the function framLoad. The manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2014-7278. Moreover, an exploit is present.

Detailsinfo

A vulnerability was found in ZyXEL SBG-3300 1.00(AADY.4)C0 and classified as problematic. This issue affects the function framLoad. The manipulation with an unknown input 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 availability.

The weakness was disclosed 10/03/2014 by Mirko Casadei as not defined posting (Bugtraq). The advisory is shared at archives.neohapsis.com. The identification of this vulnerability is CVE-2014-7278 since 10/01/2014. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. The advisory points out:

Abusing the 'welcome message' form, an attacker can inject JavaScript code into a core function of the main login page. The persistent javascript code injection in the framLoad() function bypass all the security checks and cause a Denial of Service disabling any access to the router web interface.

A public exploit has been developed by Mirko Casadei in HTML/Javascript. The exploit is available at 1412294400. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 51 days. During that time the estimated underground price was around $5k-$25k.

The posting contains the following remark:

Access is restored with a new firmware installation.

The vulnerability is also documented in the databases at X-Force (96892) and SecurityFocus (BID 70231†). The entry VDB-67756 is pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Mirko Casadei
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/13/2014 🔍
08/13/2014 +0 days 🔍
10/01/2014 +49 days 🔍
10/03/2014 +2 days 🔍
10/03/2014 +0 days 🔍
10/04/2014 +1 days 🔍
10/10/2014 +6 days 🔍
02/21/2022 +2691 days 🔍

Sourcesinfo

Vendor: zyxel.com

Advisory: 128550
Researcher: Mirko Casadei
Status: Not defined

CVE: CVE-2014-7278 (🔍)
GCVE (CVE): GCVE-0-2014-7278
GCVE (VulDB): GCVE-100-67757
X-Force: 96892 - ZyXEL SBG-3300 Security Gateway framLoad() function denial of service, Medium Risk
SecurityFocus: 70231 - Zyxel SBG-3300 Series Routers 'framLoad()' Function Denial of Service Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 10/10/2014 10:17
Updated: 02/21/2022 14:25
Changes: 10/10/2014 10:17 (60), 07/05/2017 09:00 (6), 02/21/2022 14:23 (4), 02/21/2022 14:25 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!