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CVE Record

CVE-2017-20148: In the ebuild package through logcheck-1.3.23.ebuild for Logcheck on Gentoo, it is possible to achieve root...

In the ebuild package through logcheck-1.3.23.ebuild for Logcheck on Gentoo, it is possible to achieve root privilege escalation from the logcheck user because of insecure recursive chown calls.

CriticalCVSS 9.8Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

This CVE concerns Gentoo’s Logcheck ebuild, where insecure recursive ownership changes could let the logcheck user become root. That is a full system compromise risk on affected Gentoo hosts, but the provided sources do not show active exploitation or broad product impact beyond Gentoo Logcheck packaging.

Executive priority

Prioritize remediation for Gentoo servers running Logcheck, especially production or internet-facing systems. Root escalation can turn a limited foothold into complete host control, but current evidence does not show confirmed active exploitation.

Technical view

The issue is described as CWE-732: incorrect permission assignment in Logcheck ebuild packaging through logcheck-1.3.23.ebuild on Gentoo. Recursive chown behavior could enable root privilege escalation from the logcheck user. Source metadata assigns CVSS 3.1 score 9.8, though the description implies a local privilege context.

Likely exposure

Exposure is likely limited to Gentoo systems that installed Logcheck using the affected ebuild through logcheck-1.3.23.ebuild. The source bundle lists no precise CPEs or non-Gentoo affected products, so asset teams should verify package provenance rather than assuming wider exposure.

Exploitation context

The provided sources do not indicate CISA KEV listing or active exploitation. The vulnerability is a privilege escalation path from the logcheck user to root, so practical risk depends on whether an attacker can influence or access that account or related Logcheck-managed paths.

Researcher notes

Key evidence is sparse: CVE text, Gentoo bug reference, and GLSA URL. The CVSS vector states network/no privileges, but the description says escalation from the logcheck user. Treat the vendor advisory as authoritative for affected version and fix details.

Mitigation direction

  • Review Gentoo GLSA-202209-10 for vendor-approved fixed package guidance.
  • Update affected Gentoo Logcheck packages according to Gentoo’s advisory.
  • If updating is delayed, assess disabling or removing Logcheck on exposed hosts.
  • Restrict unnecessary access paths to the logcheck account until remediation is complete.

Validation and detection

  • Inventory Gentoo hosts for Logcheck installations and package metadata.
  • Check whether any system used logcheck-1.3.23.ebuild or older affected packaging.
  • Compare installed versions against Gentoo GLSA-202209-10 guidance.
  • Review host hardening around the logcheck user and Logcheck-managed directories.
Prepared
Confidence
medium
Sources
4

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.

cwe · medium confidence lookup

CWE-732: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2017-20148 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2017-20148Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

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

CWE-732 · source CWE mapping

Incorrect Permission Assignment for Critical Resource

Incorrect Permission Assignment for Critical Resource represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.