fix: validate rechargingInfo format to prevent panic#61
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Alonza0314 merged 2 commits intofree5gc:mainfrom Jan 14, 2026
Merged
fix: validate rechargingInfo format to prevent panic#61Alonza0314 merged 2 commits intofree5gc:mainfrom
Alonza0314 merged 2 commits intofree5gc:mainfrom
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| rechargingInfo := c.Param("rechargingInfo") | ||
| ueIdRatingGroup := strings.Split(rechargingInfo, "_") | ||
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| if len(ueIdRatingGroup) < 2 { |
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it can't block all the attack.
- Add length check before accessing split result index - Return HTTP 400 Bad Request with ProblemDetails for invalid format - Improve strconv.Atoi error handling to return 400 instead of continuing - Add proper error logging for security monitoring This fixes a Denial of Service vulnerability where malicious input without underscore delimiter would cause index out of range panic. Fixes: free5gc/free5gc#760 Signed-off-by: solar224 <cyc.cs14@nycu.edu.tw>
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- Change route from /recharging/:rechargingInfo to /recharging/:ueId
- Use query parameter ?ratingGroup=N instead of underscore delimiter
- This follows REST best practices and avoids parsing issues
- Fixes potential issues when ueId contains underscores
Breaking change: API clients must update to new format
Old: PUT /recharging/{ueId}_{ratingGroup}
New: PUT /recharging/{ueId}?ratingGroup={ratingGroup}
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@roundspring2003 PTAL |
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@Alonza0314 LGTM |
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@Alonza0314 |
Alonza0314
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Jan 14, 2026
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@roundspring2003 PTAL
This fixes a Denial of Service vulnerability where malicious input without underscore delimiter would cause index out of range panic.
Fixes: free5gc/free5gc#760