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CVE Record

CVE-2017-7622: dde-daemon, the daemon process of DDE (Deepin Desktop Environment) 15.0 through 15.3, runs with root privil...

dde-daemon, the daemon process of DDE (Deepin Desktop Environment) 15.0 through 15.3, runs with root privileges and hardly does anything to identify the user who calls the function through D-Bus. Anybody can change the grub config, even to append some arguments to make a backdoor or privilege escalation, by calling DoWriteGrubSettings() provided by dde-daemon.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

DDE’s dde-daemon in Deepin Desktop Environment 15.0 through 15.3 may let any caller change bootloader settings through D-Bus while the daemon runs as root. That can turn a desktop compromise or untrusted local account into persistent privilege escalation. The sources do not provide a CVSS score or vendor fix details.

Executive priority

Prioritize affected shared workstations, developer desktops, kiosks, and any system where local user compromise would create business impact. The risk is persistence and privilege escalation, not confirmed internet-scale exploitation.

Technical view

The issue is inadequate caller identification on dde-daemon D-Bus functionality. The cited vulnerable function, DoWriteGrubSettings(), can write GRUB configuration while dde-daemon has root privileges. Sources describe possible argument injection for backdoor or privilege escalation outcomes, but do not provide complete affected package metadata or patch information.

Likely exposure

Likely exposure is Deepin Desktop Environment 15.0 through 15.3 systems running dde-daemon, especially where untrusted users or desktop sessions can access the D-Bus method. The source bundle does not identify server products, CPEs, or remote network reachability.

Exploitation context

A public proof-of-concept reference is listed, but CISA KEV status is false and the supplied sources do not claim active exploitation. The plausible attack context is local or session-level abuse of privileged D-Bus behavior to alter GRUB settings.

Researcher notes

Evidence is limited to the CVE description and a public PoC reference. No CVSS vector, CWE, CPE list, patch version, or vendor advisory is included in the supplied bundle, so remediation should be validated against current vendor records.

Mitigation direction

  • Check Deepin/DDE vendor guidance for fixed dde-daemon packages.
  • Upgrade affected DDE 15.0 through 15.3 systems when a validated fix is available.
  • Restrict untrusted local access to affected desktop systems.
  • Monitor GRUB configuration for unauthorized changes.
  • Rebuild or reimage systems if bootloader tampering is suspected.

Validation and detection

  • Inventory endpoints for Deepin Desktop Environment 15.0 through 15.3.
  • Confirm whether dde-daemon is installed and running with root privileges.
  • Review D-Bus exposure of dde-daemon administrative methods.
  • Check GRUB configuration history for unexpected argument changes.
  • Verify vendor package versions against official Deepin/DDE advisories.
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

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description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior 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-2017-7622 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.