WebService::Xero 0.11 for Perl uses insecure rand() function for cryptographic functions
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.5epss 0.3%
exploitation probability
0.3%top 78% of all CVEs
observed exploitation
nono source reports it
WebService::Xero 0.11 and earlier for Perl uses the rand() function as the default source of entropy, which is not cryptographically secure, for cryptographic functions.
Specifically WebService::Xero uses the Data::Random library which specifically states that it is "Useful mostly for test programs". Data::Random uses the rand() function.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
Affected products
LOCALSHOP · WebService::XeroReferences
https://metacpan.org/release/BAREFOOT/Data-Random-0.13/source/lib/Data/Random.pm#L537https://metacpan.org/release/LOCALSHOP/WebService-Xero-0.11/source/lib/WebService/Xero/Agent.pm#L17https://metacpan.org/release/LOCALSHOP/WebService-Xero-0.11/source/lib/WebService/Xero/Agent.pm#L178https://metacpan.org/release/LOCALSHOP/WebService-Xero-0.11/source/lib/WebService/Xero/Agent/PublicApplication.pm#L13https://metacpan.org/release/LOCALSHOP/WebService-Xero-0.11/source/lib/WebService/Xero/Agent/PublicApplication.pm#L93https://perldoc.perl.org/functions/randhttps://security.metacpan.org/docs/guides/random-data-for-security.html