Facebook App on Android Sync Phone Number information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Facebook App on Android. It has been declared as problematic. The impacted element is an unknown function of the component Sync. Such manipulation of the argument Phone Number leads to information disclosure. Moreover, an exploit is present.

Detailsinfo

A vulnerability was found in Facebook App on Android (Social Network Software) (version now known) and classified as problematic. Affected by this issue is some unknown processing of the component Sync. The manipulation of the argument Phone Number with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality.

The weakness was disclosed 06/26/2013 with Symantec as Norton Mobile Insight Discovers Facebook Privacy Leak as not defined blog post (Official Blog). The advisory is available at symantec.com. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. This vulnerability is assigned to T1592 by the MITRE ATT&CK project. The advisory points out:

The first time you launch the Facebook application, even before logging in, your phone number will be sent over the Internet to Facebook servers. You do not need to provide your phone number, log in, initiate a specific action, or even need a Facebook account for this to happen.

After immediately, there has been an exploit disclosed. The exploit is available at symantec.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k.

The blog post contains the following remark:

In the meantime, if you wish to verify if your Facebook app or other applications are leaking private information, you can download Norton Mobile Security with Norton Mobile Insight and scan your device.

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Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

Video

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

06/26/2013 🔍
06/26/2013 +0 days 🔍
07/01/2013 +5 days 🔍
03/19/2019 +2087 days 🔍

Sourcesinfo

Advisory: Norton Mobile Insight Discovers Facebook Privacy Leak
Organization: Symantec
Status: Not defined

GCVE (VulDB): GCVE-100-9302
scip Labs: https://www.scip.ch/en/?labs.20130704

Entryinfo

Created: 07/01/2013 13:33
Updated: 03/19/2019 15:25
Changes: 07/01/2013 13:33 (49), 03/19/2019 15:25 (2)
Complete: 🔍
Cache ID: 216:D53:103

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