Build 506: 4.93 firmware support - #21
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- Changed: embedded 4.92 patch replaced by 4.93 patch built from Evilnat 4.93 CFW CoreOS - Added: OFW 4.93 and Patched 4.93 ROS hashes - Added: tools/ (Python helpers) - coreos_decrypt reimplements fail0verflow ps3tools pupunpack/unpkg/cosunpkg in pure Python so a firmware bump does not need an external toolchain; ros_hash computes the hashlist MD5; validate_data sanity-checks hashlist.xml and config.xml; pup_info prints PUP entry table
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📝 WalkthroughWalkthroughThe change adds Python tools for PS3 PUP inspection, CoreOS decryption, ROS hash generation, and data validation. It adds firmware 4.93 hashes, updates patch and assembly versions, and refreshes compiled-release metadata. ChangesFirmware 4.93 support
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🟡 Moderate · up to This release adds firmware-processing utilities, but crafted input can make optional extraction write outside the selected output directory and can consume excessive local resources. These concrete security and availability risks should be addressed before merging; minor documentation and validation issues also remain. Sequence Diagram(s)sequenceDiagram
participant PS3 PUP
participant coreos_decrypt.py
participant ros_hash.py
participant hashlist.xml
participant validate_data.py
PS3 PUP->>coreos_decrypt.py: provide firmware package
coreos_decrypt.py->>coreos_decrypt.py: decrypt CoreOS content
coreos_decrypt.py->>ros_hash.py: provide content payload
ros_hash.py->>hashlist.xml: generate 4.93 hash entries
validate_data.py->>hashlist.xml: validate hashes and types
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 30.30% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 33 functions across 5 files. (9 skipped: 9 unsupported.) ✨ Finishing Touches🧪 Generate unit tests (beta)
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Actionable comments posted: 6
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Inline comments:
In `@tools/coreos_decrypt.py`:
- Line 17: Update the documented coreos_decrypt command to use the
argparse-defined --extract-selfs option instead of --self-only, and provide the
required output directory argument so the command reaches decryption
successfully.
- Around line 291-296: Validate each archive-provided name in the cosunpkg_files
extraction loop before constructing or opening out: reject absolute paths and
any path whose resolved location escapes the resolved args.out directory, then
write only validated paths beneath the output root.
- Around line 91-100: Update parse_pup to validate the declared count n before
the range(n) loop, ensuring the complete PUP entry table from PUP_HEADER through
PUP_ENTRY * n fits within the available data; reject malformed files when it
exceeds the buffer, while preserving normal parsing for valid counts.
In `@tools/pup_info.py`:
- Around line 27-38: Update KNOWN_ENTRIES so entry 0x200 reflects its actual PUP
name and entry 0x300 identifies the update_files.tar containing the CoreOS
package. Also revise the extraction example to use entry 0x300, or implement
tar-member extraction before documenting direct CORE_OS_PACKAGE.pkg output.
In `@tools/ros_hash.py`:
- Around line 79-83: Update xml_entry so the name attribute value is XML-escaped
before being inserted into attrs, while preserving the existing hash formatting
and patched attribute behavior.
In `@tools/validate_data.py`:
- Around line 115-122: Update the size validation around size_attr, parse_hex,
and ROS_SIZE so a missing size and any value different from ROS_SIZE both call
rep.error; preserve the existing invalid-hex error handling and do not allow
either contract violation to result in successful validation.
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⛔ Files ignored due to path filters (2)
Latest Compiled Version/PS3DumpChecker.exeis excluded by!**/*.exesrc/PS3DumpChecker/Patches/patch.binis excluded by!**/*.bin
📒 Files selected for processing (14)
.gitignoreLatest Compiled Version/PS3DumpChecker.exe.md5Latest Compiled Version/PS3DumpChecker.exe.versionLatest Compiled Version/changelogLatest Compiled Version/default.hashlistLatest Compiled Version/default.hashlist.md5src/PS3DumpChecker/Patches/patch_info.txtsrc/PS3DumpChecker/Properties/AssemblyInfo.cssrc/PS3DumpChecker/hashlist.xmltools/README.mdtools/coreos_decrypt.pytools/pup_info.pytools/ros_hash.pytools/validate_data.py
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- coreos_decrypt: fix docstring example (--extract-selfs, not --self-only) - coreos_decrypt: bound-check the PUP entry count before allocating the table - coreos_decrypt: reject unsafe archive-supplied names in --extract-selfs (zip-slip: absolute paths, drive letters, ..-components, separators) - pup_info: clarify that CoreOS appears both at entry 0x200 and inside update_files.tar; drop stale "needs external tool to decrypt" note -- coreos_decrypt does it now - ros_hash: XML-escape the name attribute so quotes/&/< in --name don't produce malformed XML - validate_data: missing size and size != ROS_SIZE are now errors, not warnings; a hashlist entry with the wrong size is a real bug
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Adds support for firmware 4.93 (OFW released 2026-03-18, Evilnat Cobra 8.5 CFW released 2026-03-31).
Changes
hashlist.xmlAssemblyVersionto1.0.506.0tools/(Python 3, pycryptodome only):coreos_decrypt.pyreimplements fail0verflowps3toolspupunpack/unpkg/cosunpkg in pure Python. DecryptsCORE_OS_PACKAGE.pkgfrom a PUP into the raw ROS content blob. Uses the public retail PKG keys embedded in the script. Removes the need for an external toolchain when bumping firmware.ros_hash.pycomputes the MD5 thathashlist.xmlstores, prints ready-to-paste XML entries.validate_data.pysanity-checkshashlist.xmlandconfig.xml(well-formed, no duplicate MD5s/names, hex fields parse, hashes reference declared types).pup_info.pyprints a PUP entry table.New hashes (uppercase MD5)
7C54192073537CD1C448971547086423505788E2430D1573D925E713EA58CA23Verification
md5.txtshipped in the release rar).0x6FFFE0bytes on both, with the expected CoreOS layout (25 SELFs, magicSCE\0,sdk_version = 4.93).hashlist.xmlfrom the currentpatch.bin(round-trip sanity).python tools/validate_data.py→ 139 hashes, 0 errors.patch.bin(verified by scanning the exe for the ROS signature and re-hashing the embedded blob → matches505788E2430D1573D925E713EA58CA23).Not verified
patch.binblob is the raw decrypted CFW CoreOS content -- the same blob 100K+ users have already flashed successfully via the Evilnat installer -- but this specificPS3DumpCheckerbuild has not been exercised on a real dump yet.Please review before treating this as a final release.
Summary by CodeRabbit
New Features
Documentation
Maintenance