VDB-128690 · CVE-2018-3986 · BID 106295

Telegram 4.9.0 on Android Secret Chat Stored information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Telegram 4.9.0 on Android. Affected by this issue is some unknown functionality of the component Secret Chat. Such manipulation leads to information disclosure (Stored). This vulnerability is referenced as CVE-2018-3986. The attack can only be performed from a local environment. No exploit is available.

Detailsinfo

A vulnerability was found in Telegram 4.9.0 on Android (Android App Software). It has been rated as problematic. Affected by this issue is some unknown functionality of the component Secret Chat. The manipulation with an unknown input leads to a information disclosure vulnerability (Stored). 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. CVE summarizes:

An exploitable information disclosure vulnerability exists in the "Secret Chats" functionality of the Telegram Android messaging application version 4.9.0. The "Secret Chats" functionality allows a user to delete all traces of a chat, either by using a time trigger or by direct request. There is a bug in this functionality that leaves behind photos taken and shared on the secret chats, even after the chats are deleted. These photos will be stored in the device and accessible to all applications installed on the Android device.

The bug was discovered 12/21/2018. The weakness was published 01/03/2019 by Cisco with Cisco Talos (Website). The advisory is available at securityfocus.com. This vulnerability is handled as CVE-2018-3986 since 01/02/2018. Local access is required to approach this attack. A simple authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 13 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 106295†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CNA Base Score: 4.2
CNA Vector (Talos): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Partially

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

01/02/2018 🔍
12/21/2018 +353 days 🔍
12/21/2018 +0 days 🔍
01/03/2019 +13 days 🔍
01/03/2019 +0 days 🔍
01/04/2019 +1 days 🔍
06/23/2023 +1631 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Cisco
Organization: Cisco Talos
Status: Not defined

CVE: CVE-2018-3986 (🔍)
GCVE (CVE): GCVE-0-2018-3986
GCVE (VulDB): GCVE-100-128690
SecurityFocus: 106295 - Telegram 'Secret Chats' Functionality Local Information Disclosure Vulnerability

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

Entryinfo

Created: 01/04/2019 12:34
Updated: 06/23/2023 08:15
Changes: 01/04/2019 12:34 (61), 04/26/2020 09:47 (4), 06/23/2023 08:15 (14)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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