omkar/mattermost-patched-enterprise
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Add already-patched detection

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WasserEsser
2026-04-30 12:53:29 +02:00
parent 526f7aafe7
commit 4b6d18c26f
1 changed files with 8 additions and 0 deletions
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patch.sh
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@@ -35,6 +35,7 @@ if [ ${#MISSING_DEPS[@]} -gt 0 ]; then
fi fi
SEARCH_PATTERN=$(echo "$PATTERN" | tr -d ' ' | tr '?' '.' | tr 'A-Z' 'a-z') SEARCH_PATTERN=$(echo "$PATTERN" | tr -d ' ' | tr '?' '.' | tr 'A-Z' 'a-z')
PATCHED_PATTERN=$(echo "$PATTERN" | sed 's/74 53/75 53/' | tr -d ' ' | tr '?' '.' | tr 'A-Z' 'a-z')
# Check binary file argument exists and is writable # Check binary file argument exists and is writable
if [ -z "$BINARY_FILE" ]; then if [ -z "$BINARY_FILE" ]; then
@@ -60,6 +61,13 @@ hexdump -ve '1/1 "%.2x"' "$BINARY_FILE" > "$TEMP_FILE"
echo "Searching for rsa.VerifyPKCS1v15 call inside LicenseValidatorImpl.ValidateLicense()" echo "Searching for rsa.VerifyPKCS1v15 call inside LicenseValidatorImpl.ValidateLicense()"
# Check if already patched
PATCHED_COUNT=$(grep -Eo -b "$PATCHED_PATTERN" "$TEMP_FILE" 2>/dev/null | wc -l)
if [ "$PATCHED_COUNT" -gt 0 ]; then
echo "Binary appears to already be patched (jnz instruction found)."
exit 1
fi
MATCH_COUNT=$(grep -Eo -b "$SEARCH_PATTERN" "$TEMP_FILE" | wc -l) MATCH_COUNT=$(grep -Eo -b "$SEARCH_PATTERN" "$TEMP_FILE" | wc -l)
if [ "$MATCH_COUNT" -gt 1 ]; then if [ "$MATCH_COUNT" -gt 1 ]; then
echo "Warning: Found $MATCH_COUNT matches for the pattern. Using the first match." echo "Warning: Found $MATCH_COUNT matches for the pattern. Using the first match."