HOMEVULNERABILITIESCVE-2017-15997
HIGH

CVE-2017-15997

CWE-327Published: October 29, 2017· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

In the "NQ Contacts Backup & Restore" application 1.1 for Android, RC4 encryption is used to secure the user password locally stored in shared preferences. Because there is a static RC4 key, an attacker can gain access to user credentials more easily by leveraging access to the preferences XML file.

NVD Source

Technical Analysis

CVE-2017-15997 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

nq1 product(s)
contacts backup \& restore
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://1337sec.blogspot.de/2017/10/auditing-nq-contacts-backup-restore-11.html
ADVISORYhttps://1337sec.blogspot.de/2017/10/auditing-nq-contacts-backup-restore-11.html

All References (2)

→
https://1337sec.blogspot.de/2017/10/auditing-nq-contacts-backup-restore-11.htmlThird Party Advisory
→
https://1337sec.blogspot.de/2017/10/auditing-nq-contacts-backup-restore-11.htmlThird Party Advisory

Quick Facts

CVE IDCVE-2017-15997
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-327
CISA KEVNo
Affected1 vendor(s)
PublishedOct 29, 2017

Related CVEs (CWE-327)

CVE-2026-50086
10.0
CVE-2025-54426
9.9
CVE-2020-10377
9.8
CVE-2019-9095
9.8
CVE-2019-13022
9.8
CVE-2018-21058
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-15997 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2017-15997·NVD