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cve[email protected]CVE-2020-8276
HistoryNov 09, 2020 - 3:15 p.m.

CVE-2020-8276

2020-11-0915:15:13
CWE-312
web.nvd.nist.gov
15
1
brave desktop
p3a
privacy-preserving analytics
cve-2020-8276
software vulnerability
information security

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

5.3 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

The implementation of Brave Desktop’s privacy-preserving analytics system (P3A) between 1.1 and 1.18.35 logged the timestamp of when the user last opened an incognito window, including Tor windows. The intended behavior was to log the timestamp for incognito windows excluding Tor windows. Note that if a user has P3A enabled, the timestamp is not sent to Brave’s server, but rather a value from:Used in last 24hUsed in last week but not 24hUsed in last 28 days but not weekEver used but not in last 28 daysNever usedThe privacy risk is low because a local attacker with disk access cannot tell if the timestamp corresponds to a Tor window or a non-Tor incognito window.

Affected configurations

NVD
Node
bravebraveRange1.11.18.35
CPENameOperatorVersion
brave:bravebravele1.18.35

CNA Affected

[
  {
    "product": "https://github.com/brave/brave-core",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "v1.18.35"
      }
    ]
  }
]

Social References

More

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

5.3 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

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