Home/CVE/A researcher reported a Directory Transversal Vulnerability in Serv-U 15.3. This may allow access to files relating to t
CVE

CVE-2021-35250

A researcher reported a Directory Transversal Vulnerability in Serv-U 15.3. This may allow access to files relating to t

A researcher reported a Directory Transversal Vulnerability in Serv-U 15.3. This may allow access to files relating to the Serv-U installation and server files. This issue has been resolved in Serv-U 15.3 Hotfix 1.

HIGH · CVSS 7.5 EPSS 0.80971
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 1% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
▤

Affected Products & Versions

1
solarwinds serv-uall versions
⚠

Public Exploits & PoCs

1
nucleiSolarWinds Serv-U 15.3 - Directory Traversalhigh
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSuspicious Serv-U Process Pattern
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · psirt@solarwinds.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD25 Apr 2022 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://support.solarwinds.com/SuccessCenter/s/article/Serv-U-15-3-HotFix-1?language=en_USVendor Advisory
https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35250Vendor Advisory
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