Fix/customer launch issue blackbox agent nqi claude#12
Fix/customer launch issue blackbox agent nqi claude#12
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| if expected_y2 == y2: | ||
| matches.append((test_secret, slope)) | ||
| print(f"Match: secret=0x{test_secret:02x}, slope=0x{slope:02x}") |
Check failure
Code scanning / CodeQL
Clear-text logging of sensitive information High
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AI 5 months ago
To mitigate the risk of logging sensitive data, avoid printing the actual value of the secret found. Instead, print only non-sensitive information, such as the index number of the match or an informational message omitting the concrete value. For this code, the best solution is to either omit the secret value from the log line, or replace it with a redacted label (such as "REDACTED" or a hash/digest if that's helpful), or simply print how many matches were found after the loop, without listing their content.
Specifically, in debug_byte1.py, adjust line 44 so that the message does not print the cleartext value of secret. For debugging, you might keep the slope, since it's less likely to be sensitive, but ideally, redact or omit both if unsure. If some reporting is still needed, e.g. for development, you may print the number of matches at the end.
No additional imports are required for simple redaction. If you wanted to log a hash (as a unique identifier), you could import hashlib; but basic redaction is sufficient here, so keep the fix minimal and within the lines provided.
| @@ -41,7 +41,7 @@ | ||
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| if expected_y2 == y2: | ||
| matches.append((test_secret, slope)) | ||
| print(f"Match: secret=0x{test_secret:02x}, slope=0x{slope:02x}") | ||
| print(f"Match found (secret redacted), slope=0x{slope:02x}") | ||
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| if not matches: | ||
| print("No matches found!") |
| exit(1) | ||
| secret_bytes.append(secret_byte) | ||
| if i == 0: | ||
| print(f" Byte 0: 0x{secret_byte:02x}") |
Check failure
Code scanning / CodeQL
Clear-text logging of sensitive information High
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AI 5 months ago
To fix the problem, avoid logging sensitive values such as secret bytes or entropy, even partially (e.g., the first byte of a cryptographic key). On line 142 of recover_v3.py, the code prints the value of the first secret byte recovered, which could leak information if logs are accessed by unauthorized users. The line should be removed or, if progress indication is essential, replaced with a generic non-sensitive status message such as "Byte 0 recovered" without printing its actual value. No additional methods or imports are required. Only line 142 needs to be changed.
| @@ -139,7 +139,7 @@ | ||
| exit(1) | ||
| secret_bytes.append(secret_byte) | ||
| if i == 0: | ||
| print(f" Byte 0: 0x{secret_byte:02x}") | ||
| print(" Byte 0 recovered") | ||
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| secret_bytes = bytes(secret_bytes) | ||
| print(f" Recovered entropy: {secret_bytes.hex()}") |
| y3 = gf_add(secret, gf_mul(slope, 3)) | ||
| y15 = gf_add(secret, gf_mul(slope, 15)) | ||
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| print(f"\nTest polynomial: f(x) = {secret} + {slope}*x") |
Check failure
Code scanning / CodeQL
Clear-text logging of sensitive information High test
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AI 5 months ago
To fix this problem, we must prevent sensitive information (the value of secret) from being written to logs (i.e., from printing to stdout or a log file). The best approach is to edit the log message on line 45 so that it does not include the value of the secret. There are several ways to do this:
- Omit the value entirely: Just display the symbolic variable or string, not its value.
- Mask or redact: Show an indicator (such as *** or "REDACTED") in place of the actual value, if context requires.
- Generalize: Print the formula without revealing values, e.g.,
"f(x) = secret + slope * x".
Here, the best approach is to modify the print statement so it does not leak the value of secret. Instead, print the formula in symbolic form.
File/Region to change:
- File:
test_gf256.py - Region: Line 45 (the print statement concerned).
No additional imports or new methods are needed; just update the formatting in the print call.
| @@ -42,7 +42,7 @@ | ||
| y3 = gf_add(secret, gf_mul(slope, 3)) | ||
| y15 = gf_add(secret, gf_mul(slope, 15)) | ||
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| print(f"\nTest polynomial: f(x) = {secret} + {slope}*x") | ||
| print("\nTest polynomial: f(x) = secret + slope*x") | ||
| print(f"f(3) = {y3}") | ||
| print(f"f(15) = {y15}") | ||
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| recovered2 = gf_add(gf_mul(y1, L1_0), gf_mul(y2, L2_0)) | ||
| print(f"Method 2: {recovered2}") | ||
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| print(f"\nExpected: {secret}") |
Check failure
Code scanning / CodeQL
Clear-text logging of sensitive information High test
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AI 5 months ago
To fix this vulnerability, we should ensure that the value of secret (or any sensitive value) is not logged in clear text. In a test/demo context, we still want to verify correctness without exposing the actual value. The best approach is to avoid printing the value directly. Instead, log only whether the recovered values match the secret, or obfuscate/mask the value if informative logging is needed.
File/region to change:
- File:
test_gf256.py - Region: Line 73 (
print(f"\nExpected: {secret}")) and potentially any other location directly printingsecret.
Implementation:
- Remove or mask the direct print of
secreton line 73. - Instead, log that a secret was expected (e.g., “Expected: ”) or simply log pass/fail status using the already-present match check on line 74.
No additional imports or functions are needed for simple masking or removing this line.
| @@ -70,7 +70,7 @@ | ||
| recovered2 = gf_add(gf_mul(y1, L1_0), gf_mul(y2, L2_0)) | ||
| print(f"Method 2: {recovered2}") | ||
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| print(f"\nExpected: {secret}") | ||
| print("\nExpected: <secret value hidden>") | ||
| print(f"Match: {recovered1 == secret and recovered2 == secret}") | ||
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| # Now test with the actual share data |
| expected_y2 = gf_add(test_secret, gf_mul(slope, x2)) | ||
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| if expected_y2 == y2: | ||
| print(f" Secret: 0x{test_secret:02x}, Slope: 0x{slope:02x}") |
Check failure
Code scanning / CodeQL
Clear-text logging of sensitive information High test
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AI 5 months ago
To fix this vulnerability, we should avoid printing sensitive data (the potential "secret" values) to logs/console. In the diagnostic output loop at lines 94–108, only log non-sensitive information, such as whether a match was found (i.e., a candidate secret exists), or log only the slope without including the secret. If necessary for debugging, print only a constant placeholder instead of the true value, or remove the print entirely. The specific required change is to either comment out, remove, or redact the sensitive data from the print statement at line 108 in test_gf256.py. No new imports or definitions are required.
| @@ -105,4 +105,4 @@ | ||
| expected_y2 = gf_add(test_secret, gf_mul(slope, x2)) | ||
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| if expected_y2 == y2: | ||
| print(f" Secret: 0x{test_secret:02x}, Slope: 0x{slope:02x}") | ||
| print(f" [REDACTED SECRET], Slope: 0x{slope:02x}") |
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