Shell in a Box up to 2.18 HTTPS Fallback /plain DNS Rebinding 7pk security

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.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Shell in a Box up to 2.18 and classified as critical. The affected element is an unknown function of the file /plain of the component HTTPS Fallback. The manipulation results in 7pk security (DNS Rebinding). This vulnerability is identified as CVE-2015-8400. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Shell in a Box up to 2.18. It has been classified as critical. Affected is an unknown code of the file /plain of the component HTTPS Fallback. The manipulation with an unknown input leads to a 7pk security vulnerability (DNS Rebinding). CWE is classifying the issue as CWE-254. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The HTTPS fallback implementation in Shell In A Box (aka shellinabox) before 2.19 makes it easier for remote attackers to conduct DNS rebinding attacks via the "/plain" URL.

The weakness was released 01/12/2016 (Website). The advisory is shared for download at github.com. This vulnerability is traded as CVE-2015-8400 since 12/02/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1211.

The vulnerability scanner Nessus provides a plugin with the ID 89163 (Fedora 23 : shellinabox-2.19-1.fc23 (2015-1c773e8702)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169611 (OpenSuSE Security Update for shellinabox (openSUSE-SU-2016:3215-1)).

Upgrading to version 2.19 eliminates this vulnerability. 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 Tenable (89163) and Vulnerability Center (SBV-55732†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• Shell in a Box

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14
• 2.15
• 2.16
• 2.17
• 2.18

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.4
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.4
NVD Vector: 🔍

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

Name: DNS Rebinding
Class: 7pk security / DNS Rebinding
CWE: CWE-254
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Nessus ID: 89163
Nessus Name: Fedora 23 : shellinabox-2.19-1.fc23 (2015-1c773e8702)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for shellinabox FEDORA-2015-463143720
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Shell in a Box 2.19

Timelineinfo

12/02/2015 🔍
01/07/2016 +36 days 🔍
01/12/2016 +5 days 🔍
01/12/2016 +0 days 🔍
01/12/2016 +0 days 🔍
01/13/2016 +1 days 🔍
01/17/2016 +4 days 🔍
03/04/2016 +47 days 🔍
11/11/2024 +3174 days 🔍

Sourcesinfo

Advisory: FEDORA-2015-1c773e8702
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-8400 (🔍)
GCVE (CVE): GCVE-0-2015-8400
GCVE (VulDB): GCVE-100-80196
Vulnerability Center: 55732 - Shellinabox <2.19 Remote DNS Rebinding via HTTPS Fallback, Medium

Entryinfo

Created: 01/13/2016 09:25
Updated: 11/11/2024 09:03
Changes: 01/13/2016 09:25 (53), 07/05/2018 08:57 (25), 07/03/2022 06:59 (4), 07/03/2022 07:13 (1), 07/03/2022 07:19 (1), 11/11/2024 09:03 (18)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

Do you need the next level of professionalism?

Upgrade your account now!