SARA / Free Tools / KEV / CVE-2020-28949

CVE-2020-28949 on CISA KEV

Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks, and thus any other stream-wrapper attack (such as file:// to overwrite files) can still succeed.

CISA KEV — Actively Exploited

PEAR Archive_Tar Deserialization of Untrusted Data Vulnerability

Vendor / Product
— / PEAR / Archive_Tar
Added to KEV
2022-08-25
BOD 22-01 due
2022-09-15
Ransomware use
Unknown
CVSS / EPSS
· EPSS 92.96%

01What CISA says about this vulnerability

Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks, and thus any other stream-wrapper attack (such as file:// to overwrite files) can still succeed.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

VendorProductVersions
na / n/an/a

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

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Programmatic KEV data?
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