Vulnerability Report

CVE-2017-17715

Title: Telegram Telegram Messenger Path Traversal / LFI

Arbitrary File Access

Proof Of Concept

No public PoC currently indexed for CVE-2017-17715.

CWE Category CWE-22

Published Date Dec 16, 2017

Modified Date Jun 17, 2026

Exploit Status Not Found

Score 8.8 CVSS v3.0

Exploit Probability (EPSS)

1.74%

Vulnerability Summary

CVE-2017-17715: The saveFile method in MediaController.java in the Telegram Messenger application before 2017-12-08 for Android allows directory traversal via a pathname obtained in a file-transfer request from a remote peer, as demonstrated by writing to tgnet.dat or tgnet.dat.bak.

Impacted Vendors

telegram 1

Reference Links

https://bugs.chromium.org/p/project-zero/issues/detail?id=1470 https://bugs.chromium.org/p/project-zero/issues/detail?id=1470

CVSS v3.0

Source Entity [email protected]

Severity HIGH

8.8

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

6.8

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:M/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns