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Update Stacktrace detection script. #269

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Merged
Michelle-PortSwigger merged 2 commits into from
Aug 25, 2026
Merged

Update Stacktrace detection script. #269

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b3de213
Enhance stack trace detection for generic exceptions
righettod Aug 24, 2026
abebb5d
Refine exception matching conditions in stackTrace.bcheck
righettod Aug 25, 2026
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17 changes: 14 additions & 3 deletions other/stackTrace.bcheck
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Original file line number Diff line number Diff line change
Expand Up @@ -5,22 +5,25 @@ metadata:
author: "Dominique Righetto"
tags: "passive","informative"

# Sources:
# https://github.com/PortSwigger/error-message-checks/blob/master/src/main/resources/burp/match-rules.tab
# https://github.com/righettod/burp-piper-custom-scripts/blob/main/detect-response-with-errors-disclosure.py

define:
common_detail = "The response contains a stack trace that discloses information about the server-side technology used: "
common_remediation = "Add an error handler to ensure any errors that may occur are caught, then return a generic message."

given response then
# Source: https://github.com/righettod/burp-piper-custom-scripts/blob/main/detect-response-with-errors-disclosure.py
# Java
if {latest.response.body} matches "(java\.[\w]+\.[\w]+)" then
if {latest.response.body} matches "(java|javax|jakarta)\.([a-zA-Z0-9\.]+)Exception" then
report issue:
severity: info
confidence: firm
detail: `{common_detail} Java.`
remediation: `{common_remediation}`
end if
# .Net
if {latest.response.body} matches "(\w+Exception:\s['\"\w\d\s]+)" then
if {latest.response.body} matches "(Microsoft|System)\.([a-zA-Z0-9\.]+)Exception" then
report issue:
severity: info
confidence: firm
Expand Down Expand Up @@ -51,3 +54,11 @@ given response then
detail: `{common_detail} Ruby.`
remediation: `{common_remediation}`
end if
# Generic
if {latest.response.body} matches "(\w+Exception:\s['\"\w\d\s]+)" then
report issue:
severity: info
confidence: firm
detail: `{common_detail} Generic exception catched so the technology cannot be clearly determined.`
remediation: `{common_remediation}`
end if
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