CVE-2018-12088 - S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an attacker who controls the backend can present old versions of the filesystem metadata database as up-to-date, temporarily inject zero-valued bytes into files, or temporarily hide parts of files

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HIGH

S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an attacker who controls the backend can present old versions of the filesystem metadata database as up-to-date, temporarily inject zero-valued bytes into files, or temporarily hide parts of files

Published Jun 10, 2018

7.5

HIGH

CVSS 3.0

EPSS 1.88%

Description

S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an attacker who controls the backend can present old versions of the filesystem metadata database as up-to-date, temporarily inject zero-valued bytes into files, or temporarily hide parts of files. This is related to the checksum_basic_mapping function.

Affected products

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-20

Improper Input Validation

References (4)

https://bitbucket.org/nikratio/s3ql/commits/85aba5c2d5c81453a73a50ed638adaeef0521020
x_refsource_CONFIRMPatchThird Party Advisory
https://bitbucket.org/nikratio/s3ql/issues/272/t3_verifypy-test_retrieve-sometimes-fails
x_refsource_CONFIRMExploitThird Party Advisory
https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-4068
Advisory
https://groups.google.com/forum/#%21topic/s3ql/4TzCVIMkA4o
x_refsource_CONFIRM

Link	Providers	Tags
https://bitbucket.org/nikratio/s3ql/commits/85aba5c2d5c81453a73a50ed638adaeef0521020		x_refsource_CONFIRMPatchThird Party Advisory
https://bitbucket.org/nikratio/s3ql/issues/272/t3_verifypy-test_retrieve-sometimes-fails		x_refsource_CONFIRMExploitThird Party Advisory
https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-4068		Advisory
https://groups.google.com/forum/#%21topic/s3ql/4TzCVIMkA4o		x_refsource_CONFIRM