Security readout for executives and security teams
Apache ServiceComb ServiceCenter 1.x has a directory traversal vulnerability caused by improper configuration. In practical terms, a vulnerable ServiceCenter deployment may expose files outside the intended directory boundary. The public sources say this was fixed in 2.0.0, but do not provide severity scoring or impact detail. Exposure is limited to organizations running Apache ServiceComb-Service-Center 1.x. Risk is higher where ServiceCenter is reachable from untrusted networks. The sources do not identify specific vulnerable configurations, endpoints, operating systems, or deployment patterns. Prioritize identification and upgrade of any ServiceCenter 1.x deployment, especially if externally reachable. Business urgency depends on whether the component is deployed and exposed; the public record lacks severity scoring and confirmed exploitation evidence. Mitigation focus: Upgrade Apache ServiceComb-Service-Center 1.x deployments to 2.0.0 or later.; Review Apache ServiceComb advisory guidance before choosing compensating controls.; Restrict ServiceCenter access to trusted networks and administrative users..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection 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 lookupFile 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.
Open ATT&CK lookupCVE-2021-21501 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://lists.apache.org/thread.html/r337be65e504eac52a12e89d7de40345e5d335deee9dd7288f7f59b81%40%3Cdev.servicecomb.apache.org%3ECVE reference · x_refsource_MISC
- [announce] 20210809 CVE-2021-21501: Apache ServiceComb: ServiceComb ServiceCenter Directory TraversalCVE reference · mailing-list, x_refsource_MLIST
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.