π‘οΈ Sentinel: [MEDIUM] CSV μΈμ μ μ·¨μ½μ μμ (μΈμ λ΄λ³΄λ΄κΈ°) - #431
π‘οΈ Sentinel: [MEDIUM] CSV μΈμ μ
μ·¨μ½μ μμ (μΈμ
λ΄λ³΄λ΄κΈ°)#431seonghobae wants to merge 2 commits into
Conversation
* Escapes fields starting with =, +, -, @, \\t, \\r to prevent Excel macro execution * Extracted csvField to lib/server for isolated testing with 100% coverage
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π WalkthroughWalkthroughCSV νλ λ³ν λ‘μ§μ κ³΅μ© ChangesCSV μΈμ μ λ°©μ§
Estimated code review effort: 2 (Simple) | ~15 minutes Possibly related PRs
π₯ Pre-merge checks | β 4 | β 1β Failed checks (1 warning)
β Passed checks (4 passed)
β¨ Finishing Touches π‘ 1π Generate docstrings π‘
π§ͺ Generate unit tests (beta)
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Actionable comments posted: 4
π€ Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In @.jules/sentinel.md:
- Around line 34-37: Update the CSV sanitization regex and its tests to treat
leading newline characters (\n) like the existing CSV formula triggers, then
revise the security recordβs prevention text to include \n alongside \r. Keep
the standard field wrapper behavior consistent for all listed trigger
characters.
In `@packages/web/src/lib/server/csv.test.ts`:
- Around line 10-17: Add a regression assertion in the csvField
injection-character test covering an input beginning with newline followed by
β=1+1β, and verify it is prefixed with a single quote while preserving the
existing escaping behavior.
In `@packages/web/src/lib/server/csv.ts`:
- Around line 6-10: μ ν LFκ° CSV Injection 보νΈλ₯Ό μ°ννμ§ μλλ‘
packages/web/src/lib/server/csv.ts 6-10μ CSV μ§λ ¬ν μ κ·μμ μμ ν΄ \nμ μλ°© λ¬Έμλ‘ μ²λ¦¬νμΈμ.
packages/web/src/lib/server/csv.test.ts 10-17μλ μ ν LF μ
λ ₯μ΄ μμλ°μ΄νλ‘ λ³΄νΈλλ νκ· ν
μ€νΈλ₯Ό
μΆκ°νκ³ , .jules/sentinel.md 34-37μ μλ°© λ¬Έμ λͺ©λ‘κ³Ό pr_body.txt 10-14μ μμ Β·κ²μ¦ μ£Όμ₯μ λμΌν 보νΈ
λ²μμ λ§κ² κ°±μ νμΈμ.
In `@pr_body.txt`:
- Around line 10-14: CSV λ³΄νΈ λ‘μ§μΈ csvFieldμ νκ· ν
μ€νΈμ μ ν LF(\n) μ²λ¦¬λ₯Ό μΆκ°ν΄ μ€λͺ
λ λͺ¨λ μν
μ λμ¬λ₯Ό μ€μ ꡬνκ³Ό μΌμΉμν€μΈμ. μμ μ μλ βμλ²½νκ² μ΄μ€μΌμ΄νβλΌλ κ²μ¦ 문ꡬλ₯Ό μ κ±°νκ±°λ νμ¬ μ§μνλ μ λμ¬ λ²μλ‘ μ ννκ³ , LF
μ§μμ μΆκ°ν κ²½μ° ν΄λΉ 문ꡬλ₯Ό μ μ§νμΈμ.
πͺ Autofix
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
βΉοΈ Review info
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Configuration used: Organization UI
Review profile: CHILL
Plan: Pro Plus
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π Files selected for processing (5)
.jules/sentinel.mdpackages/web/src/app/api/orgs/[orgSlug]/dashboard/sessions/route.tspackages/web/src/lib/server/csv.test.tspackages/web/src/lib/server/csv.tspr_body.txt
| ## 2024-08-12 - CSV μΈμ μ (CWE-1236) μ·¨μ½μ μμ | ||
| **Vulnerability:** λμ보λ μΈμ λ°μ΄ν°λ₯Ό CSVλ‘ λ΄λ³΄λΌ λ, μ¬μ©μ μ λ ₯ κ°(μ: μΈμ μ λͺ©)μ΄ νν°λ§ μμ΄ κ·Έλλ‘ μΆλ ₯λμ΄ `=cmd|c!test`μ κ°μ μμμΌλ‘ μμν κ²½μ° μ€νλ λμνΈ νλ‘κ·Έλ¨μμ μ½λκ° μ€νλ μ μλ μνμ΄ μμμ΅λλ€. | ||
| **Learning:** μ¬μ©μ μ λ ₯ λ°μ΄ν°λ₯Ό μ λ’°ν΄μλ μ λλ©°, CSV ν¬λ§·μμλ ν°λ°μ΄ν μ΄μ€μΌμ΄ν μΈμλ `=` `+` `-` `@` `\t` `\r`λ‘ μμνλ λ°μ΄ν°λ μμμΌλ‘ μΈμλ μ μμΌλ―λ‘ `'`λ₯Ό μ λμ¬λ‘ λΆμ¬ λ¬Έμμ΄λ‘ μ²λ¦¬νλλ‘ κ°μ ν΄μΌ ν©λλ€. | ||
| **Prevention:** CSV νμΌ μμ± λ‘μ§ μμ± μ μ κ·μμ μ¬μ©νμ¬ μ²« κΈμκ° μμ νΈλ¦¬κ±° λ¬ΈμμΌ κ²½μ° `'`λ‘ μ΄μ€μΌμ΄ννλ λ‘μ§μ νμ€ νλ λν(wrapper) ν¨μμ μΆκ°νμ¬ λ°©μ§ν΄μΌ ν©λλ€. |
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π Security & Privacy | π‘ Minor | β‘ Quick win
보μ κΈ°λ‘μ μ ν LFλ₯Ό ν¬ν¨νμΈμ.
νμ¬ μλ°© λ¬Έμ λͺ©λ‘μ \rκΉμ§ μ€λͺ
νμ§λ§ \nμ λλ½ν©λλ€. ꡬνκ³Ό ν
μ€νΈλ₯Ό μμ ν λ€ λ³΄μ κΈ°λ‘μλ \nμ μΆκ°ν΄μΌ ν₯ν CSV μμ± μ½λκ° λμΌν λ³΄νΈ λ²μλ₯Ό λ°λ¦
λλ€. OWASPλ LFλ₯Ό μμ νΈλ¦¬κ±° λ¬Έμλ‘ λΆλ₯ν©λλ€. (owasp.org)
π€ Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In @.jules/sentinel.md around lines 34 - 37, Update the CSV sanitization regex
and its tests to treat leading newline characters (\n) like the existing CSV
formula triggers, then revise the security recordβs prevention text to include
\n alongside \r. Keep the standard field wrapper behavior consistent for all
listed trigger characters.
Source: MCP tools
| it('escapes CSV injection characters by prepending a single quote', () => { | ||
| expect(csvField('=cmd|c!test')).toBe("'=cmd|c!test") | ||
| expect(csvField('+123')).toBe("'+123") | ||
| expect(csvField('-123')).toBe("'-123") | ||
| expect(csvField('@test')).toBe("'@test") | ||
| expect(csvField('\ttest')).toBe("'\ttest") | ||
| expect(csvField('\rtest')).toBe('"\'\rtest"') // Due to regex `/[",\r\n]/.test(text)` it gets wrapped in double quotes after escaping | ||
| }) |
There was a problem hiding this comment.
π Security & Privacy | π‘ Minor | β‘ Quick win
μ ν LF νκ· ν μ€νΈλ₯Ό μΆκ°νμΈμ.
νμ¬ ν
μ€νΈλ μ ν \rμ λ¬Έμμ΄ μ€κ°μ \nλ§ νμΈν©λλ€. \n=1+1 μ
λ ₯μ΄ μμλ°μ΄νλ‘ μ λ μ²λ¦¬λλμ§ κ²μ¦νλ μΌμ΄μ€λ₯Ό μΆκ°ν΄μΌ ν©λλ€.
it('escapes CSV injection characters by prepending a single quote', () => {
+ expect(csvField('\n=1+1')).toBe('"\'\n=1+1"')π Committable suggestion
βΌοΈ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| it('escapes CSV injection characters by prepending a single quote', () => { | |
| expect(csvField('=cmd|c!test')).toBe("'=cmd|c!test") | |
| expect(csvField('+123')).toBe("'+123") | |
| expect(csvField('-123')).toBe("'-123") | |
| expect(csvField('@test')).toBe("'@test") | |
| expect(csvField('\ttest')).toBe("'\ttest") | |
| expect(csvField('\rtest')).toBe('"\'\rtest"') // Due to regex `/[",\r\n]/.test(text)` it gets wrapped in double quotes after escaping | |
| }) | |
| it('escapes CSV injection characters by prepending a single quote', () => { | |
| expect(csvField('\n=1+1')).toBe('"\'\n=1+1"') | |
| expect(csvField('=cmd|c!test')).toBe("'=cmd|c!test") | |
| expect(csvField('+123')).toBe("'+123") | |
| expect(csvField('-123')).toBe("'-123") | |
| expect(csvField('@test')).toBe("'@test") | |
| expect(csvField('\ttest')).toBe("'\ttest") | |
| expect(csvField('\rtest')).toBe('"\'\rtest"') // Due to regex `/[",\r\n]/.test(text)` it gets wrapped in double quotes after escaping | |
| }) |
π€ Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@packages/web/src/lib/server/csv.test.ts` around lines 10 - 17, Add a
regression assertion in the csvField injection-character test covering an input
beginning with newline followed by β=1+1β, and verify it is prefixed with a
single quote while preserving the existing escaping behavior.
| if (/^[=+\-@\t\r]/.test(text)) { | ||
| text = "'" + text | ||
| } | ||
|
|
||
| return /[",\r\n]/.test(text) ? `"${text.replaceAll('"', '""')}"` : text |
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π Security & Privacy | π Major | β‘ Quick win
μ ν LF 보νΈλ₯Ό λͺ¨λ CSV μ°μΆλ¬Όμμ μΌμΉμν€μΈμ.
νμ¬ κ³΅μ© ν¨μ, ν
μ€νΈ, 보μ κΈ°λ‘, PR λ³Έλ¬Έμ΄ λͺ¨λ μ ν LFλ₯Ό λ€λ£¨μ§ μμ΅λλ€. \n=1+1 κ°μ΄ μμλ°μ΄ν μμ΄ μ§λ ¬νλμ΄ CSV Injection λ°©μ§ λ²μλ₯Ό μ°νν μ μμ΅λλ€. OWASPλ LF(0x0A)λ₯Ό μμ νΈλ¦¬κ±° λ¬Έμλ‘ λΆλ₯ν©λλ€. (owasp.org)
packages/web/src/lib/server/csv.ts#L6-L10: μ κ·μμ\nμ μΆκ°νμΈμ.packages/web/src/lib/server/csv.test.ts#L10-L17: μ ν LF νκ· ν μ€νΈλ₯Ό μΆκ°νμΈμ..jules/sentinel.md#L34-L37: μλ°© λ¬Έμ λͺ©λ‘μ\nμ μΆκ°νμΈμ.pr_body.txt#L10-L14: μμ λ° κ²μ¦ μλ£ μ£Όμ₯μ μ€μ λ³΄νΈ λ²μμ μΌμΉμν€μΈμ.
π Affects 4 files
packages/web/src/lib/server/csv.ts#L6-L10(this comment)packages/web/src/lib/server/csv.test.ts#L10-L17.jules/sentinel.md#L34-L37pr_body.txt#L10-L14
π€ Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@packages/web/src/lib/server/csv.ts` around lines 6 - 10, μ ν LFκ° CSV Injection
보νΈλ₯Ό μ°ννμ§ μλλ‘ packages/web/src/lib/server/csv.ts 6-10μ CSV μ§λ ¬ν μ κ·μμ μμ ν΄ \nμ μλ°©
λ¬Έμλ‘ μ²λ¦¬νμΈμ. packages/web/src/lib/server/csv.test.ts 10-17μλ μ ν LF μ
λ ₯μ΄ μμλ°μ΄νλ‘ λ³΄νΈλλ
νκ· ν
μ€νΈλ₯Ό μΆκ°νκ³ , .jules/sentinel.md 34-37μ μλ°© λ¬Έμ λͺ©λ‘κ³Ό pr_body.txt 10-14μ μμ Β·κ²μ¦ μ£Όμ₯μ
λμΌν λ³΄νΈ λ²μμ λ§κ² κ°±μ νμΈμ.
Source: MCP tools
* Added `.trim()` before escaping functional characters in CSV export fields to prevent whitespace bypass of CSV injection protections * Extracted csvField to lib/server for isolated testing with 100% coverage
1 participant
π¨ Severity: MEDIUM
π‘ Vulnerability
μΈμ λ°μ΄ν°λ₯Ό CSVλ‘ λ€μ΄λ‘λν λ μ¬μ©μ μ λ ₯ κ°(μ: μΈμ μ λͺ©μ΄λ 첫 ν둬ννΈ)μ΄ μμ λ±μ μ€νλ λμνΈ νλ‘κ·Έλ¨μμ μμμΌλ‘ μ€νλ μ μλ CSV Injection (CWE-1236) μ·¨μ½μ μ΄ μ‘΄μ¬νμ΅λλ€.
π― Impact
μ μμ μΈ μ¬μ©μκ°
=cmd|' /C calc'!A0μ κ°μ λ΄μ©μ ν둬ννΈμ μ λ ₯ν λ€ μ‘°μ§ κ΄λ¦¬μκ° ν΄λΉ κΈ°κ°μ μΈμ μ CSVλ‘ λ°μ μ΄λν κ²½μ°, κ΄λ¦¬μμ κΈ°κΈ°μμ μμμ μ½λκ° μ€νλ μ μλ μνμ΄ μμμ΅λλ€.π§ Fix
CSV νλλ₯Ό μμ±νλ
csvFieldν¨μμ λ‘μ§μ μΆκ°νμ¬, κ°μ΄=,+,-,@,\t,\rλ±μΌλ‘ μμνλ κ²½μ° μμ μμλ°μ΄ν(')λ₯Ό λΆμ¬ μ€νλ λμνΈκ° μ΄λ₯Ό μμμ΄ μλ λ¬Έμμ΄λ‘ μΈμνλλ‘ κ°μ νμ΅λλ€. ν΄λΉ λ‘μ§μ λ³λμ νμΌ(src/lib/server/csv.ts)λ‘ λΆλ¦¬νμ¬ 100% ν μ€νΈ 컀λ²λ¦¬μ§λ₯Ό λ¬μ±νμ΅λλ€.β Verification
pnpm test src/lib/server/csv.test.tsν΅κ³Ό)PR created automatically by Jules for task 15611259884918330883 started by @seonghobae
Summary by CodeRabbit
보μ κ°μ
=,+,-,@, ν, μ€λ°κΏμΌλ‘ μμνλ κ°μ λ³΄νΈ μ²λ¦¬κ° μ μ©λ©λλ€.κ°μ μ¬ν
ν μ€νΈ