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nvd[email protected]NVD:CVE-2021-26833
HistoryApr 06, 2021 - 4:15 p.m.

CVE-2021-26833

2021-04-0616:15:16
CWE-459
web.nvd.nist.gov
2
cleartext storage
timelybills
mobile app
local attackers
jwt tokens
sensitive data

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.004

Percentile

73.4%

Cleartext Storage in a File or on Disk in TimelyBills <= 1.7.0 for iOS and versions <= 1.21.115 for Android allows attacker who can locally read user’s files obtain JWT tokens for user’s account due to insufficient cache clearing mechanisms. A threat actor can obtain sensitive user data by decoding the tokens as JWT is signed and encoded, not encrypted.

Affected configurations

Nvd
Node
timelybillstimelybillsRange1.7.0iphone_os
OR
timelybillstimelybillsRange1.21.115android
VendorProductVersionCPE
timelybillstimelybills*cpe:2.3:a:timelybills:timelybills:*:*:*:*:*:iphone_os:*:*
timelybillstimelybills*cpe:2.3:a:timelybills:timelybills:*:*:*:*:*:android:*:*

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.004

Percentile

73.4%

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