danog/phpseclib
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Merge branch 'moosa-1.0' into moosa-2.0

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This commit is contained in:
terrafrost 2021-04-03 13:19:15 -05:00
commit bac775ecd5
2 changed files with 30 additions and 2 deletions
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19
phpseclib/File/ASN1.php
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@ -351,13 +351,16 @@ class ASN1
switch ($tag) {
case self::TYPE_BOOLEAN:
// "The contents octets shall consist of a single octet." -- paragraph 8.2.1
if (strlen($content) != 1) {
if ($constructed || strlen($content) != 1) {
return false;
}
$current['content'] = (bool) ord($content[$content_pos]);
break;
case self::TYPE_INTEGER:
case self::TYPE_ENUMERATED:
if ($constructed) {
return false;
}
$current['content'] = new BigInteger(substr($content, $content_pos), -256);
break;
case self::TYPE_REAL: // not currently supported
@ -415,12 +418,15 @@ class ASN1
break;
case self::TYPE_NULL:
// "The contents octets shall not contain any octets." -- paragraph 8.8.2
if (strlen($content)) {
if ($constructed || strlen($content)) {
return false;
}
break;
case self::TYPE_SEQUENCE:
case self::TYPE_SET:
if (!$constructed) {
return false;
}
$offset = 0;
$current['content'] = array();
$content_len = strlen($content);
@ -441,6 +447,9 @@ class ASN1
}
break;
case self::TYPE_OBJECT_IDENTIFIER:
if ($constructed) {
return false;
}
$current['content'] = $this->_decodeOID(substr($content, $content_pos));
if ($current['content'] === false) {
return false;
@ -474,10 +483,16 @@ class ASN1
case self::TYPE_UTF8_STRING:
// ????
case self::TYPE_BMP_STRING:
if ($constructed) {
return false;
}
$current['content'] = substr($content, $content_pos);
break;
case self::TYPE_UTC_TIME:
case self::TYPE_GENERALIZED_TIME:
if ($constructed) {
return false;
}
$current['content'] = $this->_decodeTime(substr($content, $content_pos), $tag);
default:
}

13
tests/Unit/File/ASN1Test.php
View File

@ -405,4 +405,17 @@ class Unit_File_ASN1Test extends PhpseclibTestCase
$decoded = $asn1->decodeBER($em);
$this->assertFalse($decoded[0]);
}
public function testOIDGarbage()
{
$asn1 = new File_ASN1();
$em = pack('H*', '3080305c065860864801650304020188888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888050004207509e5bda0c762d2bac7f90d758b5b2263fa01ccbc542ab5e3df163be08e6ca9');
$decoded = $asn1->decodeBER($em);
$this->assertFalse($decoded[0]);
$em = pack('H*', '3080307f067d608648016503040201888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888804207509e5bda0c762d2bac7f90d758b5b2263fa01ccbc542ab5e3df163be08e6ca9');
$decoded = $asn1->decodeBER($em);
$this->assertFalse($decoded[0]);
}
}