Current Description
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.
Source:
MITRE
View Analysis Description
Analysis Description
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.
Source:
MITRE
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
5.5 MEDIUM
Vector:
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
(V3.0 legend)
Impact Score:
3.6
Exploitability Score:
1.8
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None
CVSS v2.0 Severity and Metrics:
Base Score:
2.1 LOW
Vector:
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
(V2 legend)
Impact Subscore:
2.9
Exploitability Subscore:
3.9
Access Vector (AV):
Local
Access Complexity (AC):
Low
Authentication (AU):
None
Confidentiality (C):
Partial
Integrity (I):
None
Availability (A):
None
Additional Information:
Allows unauthorized disclosure of information
References to Advisories, Solutions, and Tools
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Change History
2 change records found
- show changes
Initial Analysis -
2/4/2019 11:33:38 AM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:a:telegram:telegram:4.9.0:*:*:*:*:android:*:* |
| Added |
CVSS V2 |
|
(AV:L/AC:L/Au:N/C:P/I:N/A:N) |
| Added |
CVSS V3 |
|
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| Added |
CWE |
|
CWE-200 |
| Changed |
Reference Type |
http://www.securityfocus.com/bid/106295 No Types Assigned |
http://www.securityfocus.com/bid/106295 Third Party Advisory, VDB Entry |
| Changed |
Reference Type |
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0654 No Types Assigned |
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0654 Third Party Advisory |
CVE Modified by MITRE -
1/4/2019 6:29:01 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.securityfocus.com/bid/106295 [No Types Assigned] |