Blue Coat SSL Visibility Appliance up to 3.8.3 WebUI information disclosure

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.
6.4$0-$5k0.00

A vulnerability classified as critical has been found in Blue Coat SSL Visibility Appliance up to 3.8.3. This affects some unknown processing of the component WebUI. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The WebUI component in Blue Coat SSL Visibility Appliance SV800, SV1800, SV2800, and SV3800 3.6.x through 3.8.x before 3.8.4 does not set the secure flag for the administrator's cookie in an https session, which makes it easier for remote attackers to capture this cookie by intercepting its transmission within an http session, a different vulnerability than CVE-2015-4138.

The weakness was disclosed 05/30/2015 by FiSh with FishNet Security (Website). It is possible to read the advisory at kb.cert.org. This vulnerability is uniquely identified as CVE-2015-2855 since 04/03/2015. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 3.8.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (103492). The entries 75624, 75625, 75626 and 75628 are pretty similar.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SSL Visibility Appliance 3.8.4

Timelineinfo

04/03/2015 🔍
05/30/2015 +57 days 🔍
05/30/2015 +0 days 🔍
05/31/2015 +1 days 🔍
06/01/2015 +1 days 🔍
04/02/2019 +1401 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Researcher: FiSh
Organization: FishNet Security
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-2855 (🔍)
X-Force: 103492 - Blue Coat SSL Visibility Appliances information disclosure
SecurityFocus: 74921 - Blue Coat Multiple SSL Visibility Appliances Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 05/31/2015 14:36
Updated: 04/02/2019 09:19
Changes: 05/31/2015 14:36 (55), 04/02/2019 09:19 (5)
Complete: 🔍

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