SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-27935

An attacker able to get the user's cookie is able to bruteforce their password offline, because the hash of the password is stored in the cookie.

HIGH 7.5EPSS 4.97%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (4.97%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An issue was discovered in AdGuard before 0.105.2. An attacker able to get the user's cookie is able to bruteforce their password offline, because the hash of the password is stored in the cookie.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
4.97% probability · 92th percentile
CISA KEV
Not listed
Weakness
CWE-522
Affected
adguard/adguard home
Source
cve@mitre.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.