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CVE Record

CVE-2017-18113: The DefaultOSWorkflowConfigurator class in Jira Server and Jira Data Center before version 8.18.1 allows re...

The DefaultOSWorkflowConfigurator class in Jira Server and Jira Data Center before version 8.18.1 allows remote attackers who can trick a system administrator to import their malicious workflow to execute arbitrary code via a Remote Code Execution (RCE) vulnerability. The vulnerability allowed for various problematic OSWorkflow classes to be used as part of workflows. The fix for this issue blocks usage of unsafe conditions, validators, functions and registers that are build-in into OSWorkflow library and other Jira dependencies. Atlassian-made functions or functions provided by 3rd party plugins are not affected by this fix.

HighCVSS 8.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This vulnerability could let an outside attacker run code on a Jira Server or Jira Data Center system if they persuade an administrator to import a malicious workflow. It is high risk because successful exploitation can affect confidentiality, integrity, and availability, but it depends on administrator interaction.

Executive priority

Prioritize remediation for internet-facing or business-critical Jira environments. This is not described as actively exploited in the bundle, but the impact is full code execution if an administrator is deceived into importing a malicious workflow.

Technical view

Jira Server and Jira Data Center before 8.18.1 allowed unsafe OSWorkflow classes inside imported workflows through DefaultOSWorkflowConfigurator. The documented fix blocks unsafe OSWorkflow conditions, validators, functions, and registers from OSWorkflow and Jira dependencies. Atlassian-made functions and third-party plugin functions are described as unaffected.

Likely exposure

Exposure is likely limited to Jira Server or Jira Data Center instances below 8.18.1 where administrators can import workflows. The bundle does not provide a complete affected-version matrix beyond “before 8.18.1.”

Exploitation context

The bundle does not cite active exploitation, and KEV status is false. Exploitation requires a remote attacker to trick a system administrator into importing a malicious workflow, so phishing or social engineering of Jira administrators is the key practical path.

Researcher notes

CVSS is 8.8 with network attack vector, no privileges required, and user interaction required. The evidence supports RCE through unsafe OSWorkflow classes in imported workflows. Do not assume exploitation without administrator import interaction or additional evidence.

Mitigation direction

  • Upgrade Jira Server or Jira Data Center to 8.18.1 or later.
  • Review Atlassian guidance for the exact fixed version path.
  • Restrict workflow import rights to trusted Jira administrators only.
  • Do not import workflows from untrusted sources.
  • Review recently imported workflows for unexpected or unsafe workflow components.

Validation and detection

  • Inventory Jira Server and Jira Data Center instances.
  • Confirm each instance is version 8.18.1 or later.
  • Identify who has permission to import workflows.
  • Review workflow import history for untrusted sources.
  • Check Atlassian JRASERVER-72660 for vendor-specific guidance.
Prepared
Confidence
medium
Sources
3

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-94: Code execution behavior lookup

Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. 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

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. 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-2017-18113 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
High
CVSS
8.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
2Source 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
8.8CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.8High
CVSS 3.1 vector shape for CVE-2017-18113Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
AtlassianJira ServerunspecifiedListed
AtlassianJira Data CenterunspecifiedListed
Weakness

CWE details

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

CWE-94 · source CWE mapping

Improper Control of Generation of Code ('Code Injection')

Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.