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CVE Record

CVE-2017-17551: The Backup and Restore feature in Mobotap Dolphin Browser for Android 12.0.2 suffers from an arbitrary file...

The Backup and Restore feature in Mobotap Dolphin Browser for Android 12.0.2 suffers from an arbitrary file write vulnerability when attempting to restore browser settings from a malicious Dolphin Browser backup file. This arbitrary file write vulnerability allows an attacker to overwrite a specific executable in the Dolphin Browser's data directory with a crafted malicious executable. Every time the Dolphin Browser is launched, it will attempt to run the malicious executable from disk, thus executing the attacker's code.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Dolphin Browser for Android 12.0.2 could run attacker-controlled code after a user restores a malicious browser backup. The issue is not shown as exploited in CISA KEV, and the provided data has no vendor fix details. Urgency depends on whether this old Android browser is still present on managed or BYOD devices.

Executive priority

Prioritize this as a targeted mobile-app hygiene issue, not an internet-facing emergency. Act quickly if Dolphin Browser 12.0.2 is present on business devices or used with sensitive web sessions.

Technical view

The Backup and Restore feature accepts a crafted Dolphin Browser backup file that can write over a specific executable inside the app data directory. On later browser launches, Dolphin attempts to run that executable, causing attacker code execution in the app context. The source bundle lists no CVSS, CWE, or complete affected-product metadata.

Likely exposure

Exposure is likely limited to Android devices running Mobotap Dolphin Browser 12.0.2 where users can restore Dolphin backup files, especially from untrusted sources. Enterprise server exposure is not indicated by the sources.

Exploitation context

The provided sources describe a public advisory and the vulnerability mechanics. They do not show active exploitation, CISA KEV listing, exploit prevalence, or a confirmed patch. Treat exploitation as plausible only where a malicious backup can be introduced and restored.

Researcher notes

Evidence is sparse: the CVE description and VerSprite advisory reference identify the vulnerable feature and code-execution outcome, but the bundle lacks CVSS, CWE, affected CPEs, patch status, and exploitation telemetry. Avoid claiming broader Dolphin versions are affected without vendor confirmation.

Mitigation direction

  • Inventory Android devices for Dolphin Browser 12.0.2.
  • Check vendor or app-store guidance for fixed or supported versions.
  • Remove or replace unsupported Dolphin Browser installations.
  • Warn users not to restore untrusted Dolphin Browser backup files.
  • Use MDM controls to restrict risky file imports where feasible.

Validation and detection

  • Confirm whether Dolphin Browser 12.0.2 exists in MDM or asset inventory.
  • Review BYOD policy scope for unmanaged Android browser use.
  • Check helpdesk or security reports for suspicious Dolphin backup files.
  • Verify users cannot restore untrusted backups on managed devices.
  • Document whether vendor fix information is unavailable or confirmed.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

File access behavior lookup

The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2017-17551 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.