VDB-9379 · CVE-2013-4772 · OSVDB 94935

D-Link Authentication improper authentication

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.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in D-Link A1/1.01/1.02. The impacted element is an unknown function of the component Authentication Handler. This manipulation causes improper authentication. The identification of this vulnerability is CVE-2013-4772. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability classified as critical was found in D-Link A1/1.01/1.02. Affected by this vulnerability is some unknown processing of the component Authentication Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

D-Link DIR-505L SharePort Mobile Companion 1.01 and DIR-826L Wireless N600 Cloud Router 1.02 allows remote attackers to bypass authentication via a direct request when an authorized session is active.

The weakness was shared 07/08/2013 by Jason Doyle as not defined mailinglist post (Bugtraq). It is possible to read the advisory at seclists.org. The vendor was not involved in the public release. This vulnerability is known as CVE-2013-4772 since 07/05/2013. The attack can be launched remotely. Required for exploitation is a single authentication. Technical details are unknown but a public exploit is available.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k.

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 OSVDB (94935†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

DIR-826L
DIR-505L

Productinfo

Vendor

D-Link

Version

License

commercial

Website

Vendor: https://www.dlink.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.4
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

07/05/2013 🔍
07/08/2013 +3 days 🔍
07/08/2013 +0 days 🔍
07/10/2013 +2 days 🔍
05/12/2014 +306 days 🔍
05/07/2018 +1456 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: seclists.org
Researcher: Jason Doyle
Status: Not defined

CVE: CVE-2013-4772 (🔍)
GCVE (CVE): GCVE-0-2013-4772
GCVE (VulDB): GCVE-100-9379
OSVDB: 94935

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

Entryinfo

Created: 07/10/2013 12:54
Updated: 05/07/2018 08:58
Changes: 07/10/2013 12:54 (48), 05/07/2018 08:58 (6)
Complete: 🔍
Committer: olku
Cache ID: 216::103

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