Adobe Acrobat Reader Vulnerable to Use After Free Vulnerability
CVE-2023-21608

7.8HIGH

Key Information:

Vendor
Adobe
Status
Acrobat Reader
Vendor
CVE Published:
18 January 2023

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC๐Ÿฆ… CISA Reported๐Ÿ“ฐ News Worthy

Summary

Adobe Acrobat Reader is affected by a Use After Free vulnerability that can lead to arbitrary code execution in the context of the user running the software. The exploitation of this vulnerability necessitates user engagement, specifically requiring the opening of a malicious file by the victim. Affected versions include Adobe Acrobat Reader 22.003.20282 and earlier, 22.003.20281 and earlier, as well as 20.005.30418 and earlier, posing a significant security risk to users who may inadvertently open compromised PDF files.

CISA Reported

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Affected Version(s)

Acrobat Reader <= 20.005.30418

Acrobat Reader <= 22.003.20282

Acrobat Reader <= 22.003.20281

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-21608
Created by hacksysteam

CVE-2023-21608
Created by Malwareman007

News Articles

favicon image๋ณด์•ˆ๋‰ด์Šค

์–ด๋„๋น„ ์•„ํฌ๋กœ๋ฑƒ ๋ฆฌ๋”์˜ ์ทจ์•ฝ์ , ํ™œ๋ฐœํžˆ ๊ณต๊ฒฉ ๋ฐ›๊ณ  ์žˆ์–ด

๋ณด์•ˆ ์™ธ์‹  ํ•ด์ปค๋‰ด์Šค์— ์˜ํ•˜๋ฉด ๋ฏธ๊ตญ์˜ ์‚ฌ์ด๋ฒ„ ๋ณด์•ˆ ์ „๋‹ด ๊ธฐ๊ด€์ธ CISA๊ฐ€ ์–ด๋„๋น„ ์•„ํฌ๋กœ๋ฑƒ ๋ฆฌ๋”(Adobe Acrobat Reader)์—์„œ ๋ฐœ๊ฒฌ๋œ ์ทจ์•ฝ์ ์ธ CVE-2023-21608์— ๋Œ€ํ•œ ์ƒˆ๋กœ์šด ๊ฒฝ๊ณ ๋ฅผ ๋ฐœํ‘œํ–ˆ๋‹ค๊ณ  ํ•œ๋‹ค. ํ•ด๋‹น ์ทจ์•ฝ์ ์„ ํ†ตํ•œ ์ต์Šคํ”Œ๋กœ์ž‡ ๊ณต๊ฒฉ์ด ํ™œ๋ฐœํžˆ ์ง„ํ–‰๋˜๊ณ  ์žˆ๋‹ค๋Š” ๊ฒƒ์œผ๋กœ, CISA๋Š” ์ด ์ทจ์•ฝ์ ์„ โ€˜๊ธด๊ธ‰ ํŒจ์น˜ ๋ชฉ๋ก(KEV)โ€™์— ํฌํ•จ์‹œํ‚ค๊ธฐ๋„ ํ–ˆ๋‹ค. CISA์˜ KEV ๋ชฉ๋ก์€ ์‹ค์งˆ์ ์ธ ํ•ดํ‚น ๊ณต๊ฒฉ์— ํ™œ์šฉ๋˜๊ณ  ์žˆ๋Š” ์ทจ์•ฝ์ ๋“ค์„ ํฌํ•จํ•˜๊ณ  ์žˆ์–ด ํŒจ์น˜ ๊ด€๋ฆฌ ์‹œ ์ฐธ๊ณ ํ•˜๋ฉด ์œ ์šฉํ•˜๋‹ค๊ณ  ์•Œ๋ ค์ ธ ์žˆ๋‹ค.

5 months ago

favicon imageThe Hacker News

CISA Warns of Actively Exploited Adobe Acrobat Reader Vulnerability

Adobe Acrobat Reader users, beware! CISA adds high-severity flaw in Adobe Acrobat Reader to its Known Exploited Vulnerabilities list.

1 year ago

References

https://helpx.adobe.com/security/products/acrobat/apsb23-...

EPSS Score

3% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • ๐Ÿ“ฐ

    First article discovered by Security Affairs

  • ๐Ÿฆ…

    CISA Reported

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre DatabaseCISA Database2 Proof of Concept(s)5 News Article(s)
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