VDB-100665 · CVE-2017-2103 · BID 96004

LaLa Call App up to 2.4.7 on Android X.509 Certificate Validation 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.
5.6$0-$5k0.00

Summaryinfo

A vulnerability was found in LaLa Call App up to 2.4.7 on Android. It has been classified as problematic. This issue affects some unknown processing of the component X.509 Certificate Validation. Performing a manipulation results in information disclosure. This vulnerability is known as CVE-2017-2103. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in LaLa Call App up to 2.4.7 on Android (Android App Software). This affects an unknown code block of the component X.509 Certificate Validation. 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. The summary by CVE is:

The LaLa Call App for Android 2.4.7 and earlier does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The bug was discovered 02/03/2017. The weakness was published 04/28/2017 (Website). The advisory is shared at jvn.jp. This vulnerability is uniquely identified as CVE-2017-2103 since 12/01/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 84 days. During that time the estimated underground price was around $0-$5k.

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 SecurityFocus (BID 96004†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.6

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

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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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
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

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: 🔍

Timelineinfo

12/01/2016 🔍
02/02/2017 +63 days 🔍
02/03/2017 +1 days 🔍
04/28/2017 +84 days 🔍
04/28/2017 +0 days 🔍
04/28/2017 +0 days 🔍
12/21/2020 +1333 days 🔍

Sourcesinfo

Advisory: jvn.jp
Researcher: Yuto Iso
Status: Not defined

CVE: CVE-2017-2103 (🔍)
GCVE (CVE): GCVE-0-2017-2103
GCVE (VulDB): GCVE-100-100665
SecurityFocus: 96004 - LaLa Call App for Android CVE-2017-2103 SSL Certificate Validation Security Bypass Vulnerability
OSVDB: - CVE-2017-2103 - K-Opticom Corporation - Lala Call - Medium

scip Labs: https://www.scip.ch/en/?labs.20130704

Entryinfo

Created: 04/28/2017 23:46
Updated: 12/21/2020 17:19
Changes: 04/28/2017 23:46 (60), 09/21/2020 18:46 (4), 12/21/2020 17:19 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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