{"vulnerability": "CVE-2021-34421", "sightings": [{"uuid": "4a97e932-5586-4c7b-905f-da922d762584", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34421", "type": "seen", "source": "https://t.me/cibsecurity/32269", "content": "\u203c CVE-2021-34421 \u203c\n\nThe Keybase Client for Android before version 5.8.0 and the Keybase Client for iOS before version 5.8.0 fails to properly remove exploded messages initiated by a user if the receiving user places the chat session in the background while the sending user explodes the messages. This could lead to disclosure of sensitive information which was meant to be deleted from the customer's device.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-11-12T02:38:09.000000Z"}, {"uuid": "3eaf96f9-828d-40aa-a8c3-062ada48c130", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34421", "type": "seen", "source": "https://t.me/androidMalware/1381", "content": "Keybase App Vulnerability: Incomplete Cleanup of Messages In Keybase for Android/iOS, CVE-2021-34421\nhttps://www.oliviaohara.com/keybase", "creation_timestamp": "2022-02-21T17:42:03.000000Z"}, {"uuid": "815bc8dc-c8d0-487b-b795-e5eb4cdbedfc", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34421", "type": "seen", "source": "https://t.me/BlueRedTeam/1245", "content": "#Threat_Research\nKeybase App Vulnerability:\nIncomplete Cleanup of Messages In Keybase\nfor Android/iOS (CVE-2021-34421)\nhttps://www.oliviaohara.com/keybase\n\n@BlueRedTeam", "creation_timestamp": "2021-11-28T11:11:07.000000Z"}, {"uuid": "b4a44439-a183-4dfb-a737-f62ed05446d1", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34421", "type": "seen", "source": "https://t.me/thebugbountyhunter/5812", "content": "Keybase App Vulnerability: Incomplete Cleanup of Messages In Keybase for Android/iOS, CVE-2021-34421\nhttps://www.oliviaohara.com/keybase", "creation_timestamp": "2021-11-23T12:54:49.000000Z"}, {"uuid": "ec3b2688-0fac-414e-a12f-0b120fa61287", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34421", "type": "seen", "source": "https://t.me/CyberSecurityTechnologies/4856", "content": "#Threat_Research\nKeybase App Vulnerability:\nIncomplete Cleanup of Messages In Keybase\nfor Android/iOS (CVE-2021-34421)\nhttps://www.oliviaohara.com/keybase", "creation_timestamp": "2021-11-28T13:59:41.000000Z"}, {"uuid": "75ed2282-c643-4630-bfe9-bc567242d4d5", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34421", "type": "seen", "source": "https://t.me/cissp/4899", "content": "exploit\n1. CVE-2021-40865:\nhttps://github.com/hktalent/CVE-2021-40865\n\n2. CVE-2021-24084:\nWindows MDM LPE\nhttps://github.com/ohnonoyesyes/CVE-2021-24084\n]-> Micropatching Unpatched LPE in Mobile Device Management Service\nhttps://blog.0patch.com/2021/11/micropatching-unpatched-local-privilege.html\n\ntools\nCRAX++: software CRash analysis for Automatic eXploit generation\nhttps://github.com/aesophor/CRAXplusplus\n\nMalware_analysis\nA Deep Dive Into SoWaT:\nAPT31\u2019s Multifunctional Router\u00a0Implant\nhttps://imp0rtp3.wordpress.com/2021/11/25/sowat\n\nBlue_Team_Techniques\nMemory Forensics R&D Illustrated:\nDetecting Mimikatz's Skeleton Key Attack\nhttps://volatility-labs.blogspot.com/2021/10/memory-forensics-r-illustrated.html?m=1\n\nThreat_Research\nKeybase App Vulnerability:\nIncomplete Cleanup of Messages In Keybase\nfor Android/iOS (CVE-2021-34421)\nhttps://www.oliviaohara.com/keybase", "creation_timestamp": "2026-09-01T17:00:34.125514Z"}, {"uuid": "56e38cbf-f479-4a0f-8197-e7427e5ec003", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34421", "type": "seen", "source": "https://t.me/cissp/4908", "content": "Threat_Research\nKeybase App Vulnerability:\nIncomplete Cleanup of Messages In Keybase\nfor Android/iOS (CVE-2021-34421)\nhttps://www.oliviaohara.com/keybase\n\nBlue_Team_Techniques\nMemory Forensics R&D Illustrated:\nDetecting Mimikatz's Skeleton Key Attack\nhttps://volatility-labs.blogspot.com/2021/10/memory-forensics-r-illustrated.html?m=1\n\nMalware_analysis\nThreat_Research\nA Deep Dive Into SoWaT:\nAPT31\u2019s Multifunctional Router\u00a0Implant\nhttps://imp0rtp3.wordpress.com/2021/11/25/sowat", "creation_timestamp": "2026-09-01T17:00:33.937527Z"}, {"uuid": "d5d158a5-3022-4bc5-9a20-e4080d8eff46", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34421", "type": "seen", "source": "https://t.me/cissp/4908", "content": "Threat_Research\nKeybase App Vulnerability:\nIncomplete Cleanup of Messages In Keybase\nfor Android/iOS (CVE-2021-34421)\nhttps://www.oliviaohara.com/keybase\n\nBlue_Team_Techniques\nMemory Forensics R&D Illustrated:\nDetecting Mimikatz's Skeleton Key Attack\nhttps://volatility-labs.blogspot.com/2021/10/memory-forensics-r-illustrated.html?m=1\n\nMalware_analysis\nThreat_Research\nA Deep Dive Into SoWaT:\nAPT31\u2019s Multifunctional Router\u00a0Implant\nhttps://imp0rtp3.wordpress.com/2021/11/25/sowat", "creation_timestamp": "2026-09-02T01:04:17.349429Z"}, {"uuid": "4327b2a3-8789-491e-bc59-ad593d6830eb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34421", "type": "seen", "source": "https://t.me/cissp/4899", "content": "exploit\n1. CVE-2021-40865:\nhttps://github.com/hktalent/CVE-2021-40865\n\n2. CVE-2021-24084:\nWindows MDM LPE\nhttps://github.com/ohnonoyesyes/CVE-2021-24084\n]-> Micropatching Unpatched LPE in Mobile Device Management Service\nhttps://blog.0patch.com/2021/11/micropatching-unpatched-local-privilege.html\n\ntools\nCRAX++: software CRash analysis for Automatic eXploit generation\nhttps://github.com/aesophor/CRAXplusplus\n\nMalware_analysis\nA Deep Dive Into SoWaT:\nAPT31\u2019s Multifunctional Router\u00a0Implant\nhttps://imp0rtp3.wordpress.com/2021/11/25/sowat\n\nBlue_Team_Techniques\nMemory Forensics R&D Illustrated:\nDetecting Mimikatz's Skeleton Key Attack\nhttps://volatility-labs.blogspot.com/2021/10/memory-forensics-r-illustrated.html?m=1\n\nThreat_Research\nKeybase App Vulnerability:\nIncomplete Cleanup of Messages In Keybase\nfor Android/iOS (CVE-2021-34421)\nhttps://www.oliviaohara.com/keybase", "creation_timestamp": "2026-09-02T01:04:17.693679Z"}, {"uuid": "5f39d03a-2613-40f7-ac8e-5f3ea37d793c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34421", "type": "published-proof-of-concept", "source": "https://t.me/cissp/4899", "content": "exploit\n1. CVE-2021-40865:\nhttps://github.com/hktalent/CVE-2021-40865\n\n2. CVE-2021-24084:\nWindows MDM LPE\nhttps://github.com/ohnonoyesyes/CVE-2021-24084\n]-> Micropatching Unpatched LPE in Mobile Device Management Service\nhttps://blog.0patch.com/2021/11/micropatching-unpatched-local-privilege.html\n\ntools\nCRAX++: software CRash analysis for Automatic eXploit generation\nhttps://github.com/aesophor/CRAXplusplus\n\nMalware_analysis\nA Deep Dive Into SoWaT:\nAPT31\u2019s Multifunctional Router\u00a0Implant\nhttps://imp0rtp3.wordpress.com/2021/11/25/sowat\n\nBlue_Team_Techniques\nMemory Forensics R&D Illustrated:\nDetecting Mimikatz's Skeleton Key Attack\nhttps://volatility-labs.blogspot.com/2021/10/memory-forensics-r-illustrated.html?m=1\n\nThreat_Research\nKeybase App Vulnerability:\nIncomplete Cleanup of Messages In Keybase\nfor Android/iOS (CVE-2021-34421)\nhttps://www.oliviaohara.com/keybase", "creation_timestamp": "2026-09-10T13:00:05.687094Z"}, {"uuid": "9127e447-021e-485e-86c7-b0c2271d06c3", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34421", "type": "seen", "source": "https://t.me/cissp/4908", "content": "Threat_Research\nKeybase App Vulnerability:\nIncomplete Cleanup of Messages In Keybase\nfor Android/iOS (CVE-2021-34421)\nhttps://www.oliviaohara.com/keybase\n\nBlue_Team_Techniques\nMemory Forensics R&D Illustrated:\nDetecting Mimikatz's Skeleton Key Attack\nhttps://volatility-labs.blogspot.com/2021/10/memory-forensics-r-illustrated.html?m=1\n\nMalware_analysis\nThreat_Research\nA Deep Dive Into SoWaT:\nAPT31\u2019s Multifunctional Router\u00a0Implant\nhttps://imp0rtp3.wordpress.com/2021/11/25/sowat", "creation_timestamp": "2026-09-10T13:00:05.929756Z"}, {"uuid": "c08deb55-c091-4c3f-8d27-73643d05552a", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34421", "type": "seen", "source": "https://t.me/cissp/4908", "content": "Threat_Research\nKeybase App Vulnerability:\nIncomplete Cleanup of Messages In Keybase\nfor Android/iOS (CVE-2021-34421)\nhttps://www.oliviaohara.com/keybase\n\nBlue_Team_Techniques\nMemory Forensics R&D Illustrated:\nDetecting Mimikatz's Skeleton Key Attack\nhttps://volatility-labs.blogspot.com/2021/10/memory-forensics-r-illustrated.html?m=1\n\nMalware_analysis\nThreat_Research\nA Deep Dive Into SoWaT:\nAPT31\u2019s Multifunctional Router\u00a0Implant\nhttps://imp0rtp3.wordpress.com/2021/11/25/sowat", "creation_timestamp": "2026-09-11T00:00:39.427152Z"}, {"uuid": "4e5507a1-e626-4ce5-9233-6d5cde848a19", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-34421", "type": "published-proof-of-concept", "source": "https://t.me/cissp/4899", "content": "exploit\n1. CVE-2021-40865:\nhttps://github.com/hktalent/CVE-2021-40865\n\n2. CVE-2021-24084:\nWindows MDM LPE\nhttps://github.com/ohnonoyesyes/CVE-2021-24084\n]-> Micropatching Unpatched LPE in Mobile Device Management Service\nhttps://blog.0patch.com/2021/11/micropatching-unpatched-local-privilege.html\n\ntools\nCRAX++: software CRash analysis for Automatic eXploit generation\nhttps://github.com/aesophor/CRAXplusplus\n\nMalware_analysis\nA Deep Dive Into SoWaT:\nAPT31\u2019s Multifunctional Router\u00a0Implant\nhttps://imp0rtp3.wordpress.com/2021/11/25/sowat\n\nBlue_Team_Techniques\nMemory Forensics R&D Illustrated:\nDetecting Mimikatz's Skeleton Key Attack\nhttps://volatility-labs.blogspot.com/2021/10/memory-forensics-r-illustrated.html?m=1\n\nThreat_Research\nKeybase App Vulnerability:\nIncomplete Cleanup of Messages In Keybase\nfor Android/iOS (CVE-2021-34421)\nhttps://www.oliviaohara.com/keybase", "creation_timestamp": "2026-09-11T00:00:39.095502Z"}]}